Pls help. Questions 7-10

Pls Help. Questions 7-10

Answers

Answer 1

The key features of both equations are:

Equation 1 has a vertex at (1, -16) and opens upwards. Its axis of symmetry is x = 1

Equation 2 has a vertex at (2, 2) and opens upwards. Its axis of symmetry is x = 2.

How do we solve?

To rewrite each equation in vertex form, we need to complete the square by adding and subtracting a constant from each equation.

y = x² - 2x - 15

y = (x - 1)² - 16

The vertex form of the equation is y = a(x - h)² + k, where (h, k) is the vertex. In this case, the vertex is (1, -16).

y = 2x² - 8x + 6

y = 2(x - 2)² + 2

The vertex form of the equation is y = a(x - h)² + k, where (h, k) is the vertex. In this case, the vertex is (2, 2).

Learn more about the vertex form of an equation at: https://brainly.com/question/29170049

#SPJ1


Related Questions

the volume of a ice cube is decreasting at a rate of 1.5cm cubed per second at what rate is a side of the ice cube decreasing when the side is 6cm

Answers

The rate of decrease of the side of the cube with a side of 6 cm is 0.25 cm per second.

The rate of decrease of the side of an ice cube can be calculated by considering the volume of the cube. The volume of the cube is decreasing at a rate of 1.5 cm3 per second. Therefore, the rate of decrease of the side of the cube is proportional to the cube's volume.

To calculate the rate of decrease of the side of the cube, we need to use the formula for the volume of a cube, which is: V = s3, where V is the volume and s is the side of the cube.

Since we know that the volume of the cube is decreasing at a rate of 1.5 cm3 per second, we can calculate the rate of decrease of the side of the cube by substituting the value of the rate of decrease of the volume and the current side of the cube (6 cm) into the formula.

Therefore, the rate of decrease of the side of the cube is equal to 1.5 cm3 per second divided by 6 cm3, which is equal to 0.25 cm per second.

In conclusion, the rate of decrease of the side of the cube with a side of 6 cm is 0.25 cm per second.

See more about volume at: https://brainly.com/question/463363

#SPJ11

A chain that has a negligible mass is draped over the sprocket which has a mass of 2 kg and a radius of gyration of k_0 = 50 mm. If the 4-kg block A is released from rest in the position s = 2 m. Using energy methods, determine the angular velocity of the sprocket at the instant s = 4 m. Draw FBD at both states and clearly label datum.

Answers

The given chain which has a negligible mass is draped over the sprocket which has a mass of 2 kg and a radius of gyration of k0=50 mm.

If the 4-kg block A is released from rest in the position s=2 m. Using energy methods, determine the angular velocity of the sprocket at the instant s=4 m.First of all, draw a FBD of the system at s=2 m and at s=4 m.At s=2 m Let the velocity of the block A be v2m/s.At s=4 m Let the velocity of the block A be v4m/s.Let the angular velocity of the sprocket be ω rad/s. Draw FBD at both states and clearly label datum.For the block A at s=2 m Velocity of the block A, v=0 (Initial velocity)

Kinetic energy of the block A,KE1=12mv²=12×4×(0)²=0Potential energy of the block A,PE1=mgh=4×9.81×2=78.48JFor the block A at s=4 mLet h be the height by which the [tex],KE1=12mv²=12×4×(0)²=0[/tex]block A falls. Velocity of the block A, [tex]v=√2gh=√2×9.81×h[/tex]Kinetic energy of the block A,KE2=[tex]12mv²=12×4×[√2gh]²=8gh[/tex] Joule (J)Total potential energy of the system at s=2 m,PE1=2×g×k0 Joule (J)When the block falls from s=2 m to s=4 m, the change in the potential energy of the system is,ΔPE=PE2-PE1Where,PE2=2×g×(2k0) Joule (J)Let the change in the potential energy of the system be ΔPE1 Joule (J).

So,ΔPE1=PE2-PE1=2gk0 Joule (J)The total energy of the system is conserved.

So,ΔPE1=KE2ω²+Iω²Where,ΔPE1 is the change in the potential energy of the systemKE2 is the kinetic energy of the block A when it is at s=4 mI is the moment of inertia of the sprocket about its axisω is the angular velocity of the sprocket at s=4 mSo,ω²=ΔPE1KE2+Iω²Substitute the values of ΔPE1, KE2 and I in the above equation.

[tex]ω²=(2gk0)8gh+mr²ω²=(2×9.81×50×10⁻³)8×h×h+2×1×(50×10⁻³)²ω²=0.7848h²+2.5×10⁻³[/tex]

Therefore,ω=√(0.7848h²+2.5×10⁻³) rad/s.

Substitute the value of h=2 m in the above equation.ω=2.808 rad/s.So, the angular velocity of the sprocket at the instant s=4 m is 2.808 rad/s.

for such more questions on angular velocity

https://brainly.com/question/6860269

#SPJ11

You usually buy the same small bottle of shampoo.
There is a larger, 6.7
-ounce bottle that says it gives you 25%
more free.

What is the size in ounces of the original smaller bottle of shampoo?
Round your answer to the nearest tenth.

Answers

Answer:

If the larger bottle of shampoo gives 25% more for the same price, then it must contain 1.25 times the amount of shampoo in the smaller bottle. Let's represent the size of the smaller bottle as x ounces.

Thus, we can set up the following equation:

x * 1.25 = 6.7

Solving for x, we get:

x = 6.7 / 1.25

x ≈ 5.36

Therefore, the size of the original smaller bottle of shampoo is approximately 5.4 ounces (rounded to the nearest tenth).

The total number of cookies,y, contained in x packages can be represented by the equation y = 24x. Which of the following graphs best represents this situation?

Answers

The graph for the linear equation y=24x, will be a straight line having coordinate (1,24) i.e. B.

What is a linear equation, exactly?

A linear equation is a first-degree algebraic equation in which each term is either a constant or the product of a constant and a single variable (degree 1). A linear equation is stated as y = mx + b, where y is the dependent variable, x is the independent variable, m is the line's slope, and b= y-intercept .

A linear equation's graph is a straight line. The line's slope decides how steep it is, and the y-intercept indicates where the line crosses the y-axis. Linear equations are used to model relationships between variables that are directly proportional to each other, such as distance and time, or cost and quantity.

Now,

Given equation is y=24x

then for  x,    y is

              1,    24

              2,   48

              3,    72

              4,     96

Hence, the graph will be as represented in option 2.

To know about linear equations visit the link

brainly.com/question/29739212

#SPJ1

Triangles 1 and 2 are similar. what ratio relates a side length of triangle 1 to the corresponding side length of triangle 2? fill in the box to complete the ratio. triangle a b c is labeled triangle 1. side a c is 17, c b is 15, a b is 8. angle c is 28 degrees and angle a is 62 degrees. triangle d e f is labeled triangle 2. side d f is 25.5, f e is 22.5 and d e is 12. angle d is 62 degrees, f is 28 degrees, and e is 90 degrees. to 12

Answers

If triangles 1 and 2 are similar, the ratio relates a side length of triangle 1 to the corresponding side length of triangle 2 is 2:3.

Since Triangles 1 and 2 are similar, their corresponding sides are proportional. This means that the ratio of the length of any corresponding pair of sides in the two triangles will be equal.

To determine the ratio of the side lengths of triangle 1 to the corresponding side lengths of triangle 2, we can choose any two corresponding sides and divide their lengths.

Let's choose side AC of triangle 1 and side DF of triangle 2. We know that these two sides are corresponding because they are both opposite angles that have the same measure.

The length of side AC in triangle 1 is given as 17, and the length of side DF in triangle 2 is given as 25.5. Therefore, the ratio of the length of side AC to side DF is:

AC/DF = 17/25.5 = 0.6667 or 2/3

So the ratio of the length of a side in triangle 1 to the corresponding side in triangle 2 is 2:3. This means that if we multiply any side length in triangle 1 by 2, we will get the length of the corresponding side in triangle 2.

To learn more about triangles click on,

https://brainly.com/question/30232667

#SPJ4

Please help!
Question below!!

Answers

The coordinates for the dilated triangle is obtained as A'(-1, 8), B'(-7, 6), and C'(-7, -4).

What is dilation?

Resizing an item uses a transition called dilation. Dilation is used to enlarge or contract the items. The result of this transformation is an image with the same shape as the original. However, there is a variation in the shape's size. The initial shape should be stretched or contracted during a dilatation.

The coordinates point of the triangle is given as -

A (-1,6)

B (-4,5)

C (-4,0)

To dilate triangle ABC by a scale factor of 2 about the point (-1, 4), we can follow these steps -

Translate the triangle so that the center of dilation is at the origin.

We can do this by subtracting (-1, 4) from each vertex -

A' = (-1, 6) - (-1, 4) = (0, 2)

B' = (-4, 5) - (-1, 4) = (-3, 1)

C' = (-4, 0) - (-1, 4) = (-3, -4)

Dilate the translated triangle by multiplying the coordinates of each vertex by the scale factor of 2 -

A'' = 2(0, 2) = (0, 4)

B'' = 2(-3, 1) = (-6, 2)

C'' = 2(-3, -4) = (-6, -8)

Translate the dilated triangle back to its original position by adding (-1, 4) to each vertex -

A'B'C' = A'' + (-1, 4) = (-1, 8)

B'' + (-1, 4) = (-7, 6)

C'' + (-1, 4) = (-7, -4)

Therefore, the coordinates of the dilated triangle A'B'C' are (-1, 8), (-7, 6), and (-7, -4).

To learn more about dilation from the given link

https://brainly.com/question/3457976

#SPJ1

Select hte correct answer.Consider the functions below.f(x) = 8x2 + x + 3g(x) = 4x2 – 1h(x) = 3x + 6a. over the interval [3, 5], the average rate of change of g and h is more than the average rate of change of f. b. over the interval [0, 2], the average rate of change of f and h is less than the average rate of change of g. c. as x approaches infinity, the values of g(x) and h(x) eventually exceed the value of f(x). d. as x approaches infinity, the value of g(x) eventually exceeds the values of both f(x) and h(x)

Answers

Thus, option (d) is the correct answer.

Option (d) as x approaches infinity, the value of g(x) eventually exceeds the values of both f(x) and h(x) is the correct option. Since the functions are:f(x) =[tex]8x² + x + 3g(x) = 4x² – 1h(x) = 3x + 6[/tex]

a) over the interval [3, 5], the average rate of change of g and h is more than the average rate of change of f.It is not possible to determine which of these functions has a higher average rate of change since they all have different derivatives.b) over the interval [0, 2], the average rate of change of f and h is less than the average rate of change of g.The average rate of change of f(x) = [tex]8x² + x + 3[/tex]over the interval [0, 2] is given by:f'(x) = 16x + 1The average rate of change of f(x) = 8x² + x + 3 over the interval [0, 2] is:

[tex]f(2) - f(0)/2 - 0= f(2) - f(0)/2 = [8(2)² + 2 + 3 - (8(0)² + 0 + 3)]/2 = [32 + 2 + 3 - 3]/2 = 34/2 = 17[/tex]

The average rate of change of h(x) = 3x + 6 over the interval [0, 2] is given by:h'(x) = 3The average rate of change of h(x) = 3x + 6 over the interval [0, 2] is:[tex]h(2) - h(0)/2 - 0= h(2) - h(0)/2 = [3(2) + 6 - (3(0) + 6)]/2 = 12/2 = 6[/tex]The average rate of change of g(x) = 4x² - 1 over the interval [0, 2] is given by:g'(x) = 8xThe average rate of change of g(x) = 4x² - 1 over the interval [0, 2] is:[tex]g(2) - g(0)/2 - 0= g(2) - g(0)/2 = [4(2)² - 1 - (4(0)² - 1)]/2 = 16 - 1/2 = 15/2[/tex]

Thus, it can be concluded that the average rate of change of g(x) > f(x) > h(x) over the interval [0, 2]c) as x approaches infinity, the values of g(x) and h(x) eventually exceed the value of f(x).It is not true since g(x) and h(x) both have leading coefficients of 4 and 3, respectively, and will eventually grow faster than f(x) with a leading coefficient of 8.d) as x approaches infinity, the value of g(x) eventually exceeds the values of both f(x) and h(x)The leading coefficient of g(x) = 4x² - 1 is 4, and as x approaches infinity, it will continue to grow faster than both f(x) = 8x² + x + 3 and h(x) = 3x + 6, which have leading coefficients of 8 and 3, respectively.

for such more questions on average rate of change

https://brainly.com/question/11627203

#SPJ11

Order the functions from the narrowest graph to the widest graph. f (x) 1/3 x^2, g (x) = 4x^2, h (x) = 2x^2

Answers

The functions when ordered from narrow to wide is g(x) = 4x², h(x) = 2x² and f(x) = (1/3)x²

Ordering the function from narrow to wide

The width of the graph of a quadratic function is determined by the coefficient of the squared term.

The greater the value of this coefficient, the narrower the graph, and vice versa.

So, in order of increasing width, we have:

g(x) = 4x²

h(x) = 2x²

f(x) = (1/3)x²

f(x) has the widest graph because its coefficient is the smallest, followed by h(x), and g(x) has the narrowest graph because its coefficient is the largest.

Read more about transformation at

https://brainly.com/question/1548871

#SPJ1

what is the approximate distribution of the sample mean copper content if we sample 16 pads? include the mean and standard error of this distribution.

Answers

a) Approximately 29.50% of brake pads will contain less than 32.5% copper. b)  The approximate distribution of the sample mean copper percentage is a normal distribution with mean 34 and standard error 0.7.

a)To solve this problem, we can use the z-score formula to standardize the value of 32.5 using the mean and standard deviation given:

z = (x - μ) / σ

where x is the value we are interested in (32.5), μ is the mean (34), and σ is the standard deviation (2.8).

Substituting these values, we get:

z = (32.5 - 34) / 2.8 = -0.536

Using a standard normal distribution table or calculator, we can find the probability of a z-score less than -0.536, which is approximately 0.2950 or 29.50%. Therefore, approximately 29.50% of brake pads will contain less than 32.5% copper.

b) The sample mean copper percentage of 16 pads will also follow an approximate normal distribution with mean μ = 34 and standard deviation σ/√n = 2.8/√16 = 0.7, where n is the sample size.

Therefore, the approximate distribution of the sample mean copper percentage can be expressed as:

X ~ N(34, 0.7)

where X is the sample mean copper percentage.

The mean of this distribution is equal to the population mean μ, which is 34. The standard error of the mean (also known as the standard deviation of the sampling distribution) is given by σ/√n, which is 0.7 in this case.

Learn more about  normal distribution and sampling distribution of the mean:https://brainly.com/question/29368683

#SPJ11

Your question is incomplete, but probably the complete question is :

Assume the distribution of copper content (%) in sintered brake pads follows an approximate normal distribution with a mean of 34 and a standard deviation of 2.8

a.) What percentage of brake pads will contain less than 32.5% copper?

b.) What is the approximate distribution of the sample mean copper percentage if we sample 16 pads? Include the mean and standard error of this distribution

the income i of a computer analyst varies directly as the number of hours h worked. if the analyst earns $352 for working 8 h, how much will the analy

Answers

$44/per hour is the analysts hourly wage. i cannot see the rest of of question but hopefully this works

WILL GIVE BRAINLIST TO BEST ANSWER

The population of a certain town was 10,000 at the start of the year 2000. Each year, people moving into town increase the population by a net 3%, while people moving out of town decrease it by 2%. In addition, births increase the population by 5% each year.

Write a Recursive expression f(n), that shows the population at the beginning of the year n, as a function of its population the preceding year, n-1. Support your answer.

Answers

The Recursive expression f(n), that shows the population at the beginning of the year n, as a function of its population the preceding year is

f(1) = 10 000f(n) = f(n - 1) * 1.06

How to write the recursive expression

The population at the beginning of the year is given as 10 000

Let P(n) be the population at the beginning of the year n,

where

n is a positive integer.

We can express P(n) in terms of P(n-1) as follows:

P(n) = P(n - 1) + 0.03P(n - 1) - 0.02P(n - 1) + 0.05P(n - 1)

= (1 + 0.03 - 0.02 + 0.05)P(n - 1)

 = 1.06P(n - 1)

Therefore, the recursive expression that shows the population at the beginning of the year n as a function of its population the preceding year is:

f(n) = 1.06f(n - 1)

This recursive formula is derived from the fact that each year,

the population increases by 3% due to people moving in and decreases by 2% due to people moving out, the population increases by 5% due to births

Resulting in a total increase of 6% per year.

The formula expresses this increase as a multiplication of the previous year's population by a factor of 1.06, resulting in the population at the beginning of the current year.

Learn more about Recursive expression at:

https://brainly.com/question/30377000

#SPJ1

which of the following is a requirement of a random sample? group of answer choices every individual has an equal chance of being selected all of the other choices are correct. all scores must be equally represented in the population the sample must contain at least five individuals

Answers

A requirement of a random sample is that every individual has an equal chance of being selected.

What is a random sample? A random sample is a process of selecting members from a population, that each member has an equal chance of being chosen. In a random sample, each member of the population has an equal chance of being selected.

Therefore, every individual has an equal chance of being selected is a requirement of a random sample. So, option A is the correct answer. It is the most essential part of random sampling.

There are various types of random sampling techniques, including simple random sampling, stratified sampling, cluster sampling, and systematic sampling.

The objective of random sampling is to acquire an unbiased sample that represents the entire population fairly. The primary purpose of random sampling is to minimize bias while selecting the members of a population.

Hence, most essential part of Random Sampling is that every individual has an equal chance of being selected.

For more information on Random Sampling, refer here:

https://brainly.com/question/29852583#

#SPJ11

Find the value of x in the figure below

Answers

Consequently, x is 70 degrees as a consequence. The supplied diagram labels the angles of the triangle ABC as 40°, 70°, and x.

what is triangle ?

Three straight lines that meet at three different locations to create a triangle, a two-dimensional geometric shape. Triangles have three sides and three vertices, which are the three places where those three lines intersect. Triangles can be categorised based on the dimensions of their angles and side lengths. . In contrast, a triangle with three equal sides and three equal angles of 60 degrees is called an equilateral triangle. The sides and angles of a scalene triangle are not identical.

given

The angles of the triangle ABC are labelled in the provided figure as 40°, 70°, and x. We can use the knowledge that the sum of a triangle's angles is 180° to find x.

As a result, we have:

x + 40° + 70° = 180°

The left half of the equation is simplified as follows:

x + 110° = 180°

110° from both edges subtracted:

x = 70°

Consequently, x is 70 degrees as a consequence. The supplied diagram labels the angles of the triangle ABC as 40°, 70°, and x.

To know more about triangle visit:

https://brainly.com/question/2773823

#SPJ1

PL3ASE HELP - WORTH 40 POINTS

Answers

Answer:

What is the probability of rolling an odd product? 1/4

What is the probability of rolling a product that is greater than or equal to 20? 2/9

What is the probability of rolling a product that is less than 10? 17/36

What is the probability of rolling a product that is a multiple of 10? 1/6

2x + y = -7
3x = 6 + 4y
x = ?
y = ?

Answers

2x + y = -7

y= -7-2x

put this value in 2nd equation

3x=6+4(-7-2x)

3x=6-28-8x

11x= -22

x= -2

y= -7-2(-2)

y= -7+4

y= -3

If 3 to the power a is equal to 21 to the power b and 7 to the power c is also equal to 21 to the power b, prove that b is equal to (ac)÷(a+b) where a+b is not equal to 0

Answers

According to the given exponential equations it is proved that b = (ac) / (a+b) where a+b ≠ 0.

We are given the first equation as [tex]3^{a} = 21^{b}[/tex] ----(1) i.e 3 to the power a is equal to 21 to the power b.

The next exponential equation is [tex]7^{c} = 21^{b}[/tex] ----(2)

We know, 21 can be written as 3*7 because they are the factors of 21. Therefore, [tex]21^{b} = (3*7)^{b} = 3^{b}7^{b}[/tex]

Substituting equations (1) and (2), we get:

[tex]3^{a}= 3^{b} *7^{b}[/tex]

Taking logarithm base 3 on both sides:

a = blog3(37)

a = b*(log3(3) + log3(7))

a = b*(1 + log3(7))

b = a / (1 + log3(7)) ------ (3)

Similarly, taking logarithm base 7 on both sides of equation (2):

c = b*log7(21)

c = b*(log7(3) + log7(7))

c = b*(1 + log7(3/7))

b = c / (1 + log7(3/7)) ------ (4)

Substituting (3) and (4) in the given equation, we get:

a / (1 + log3(7)) = (ac) / (a+b) * (1 + log7(3/7))

After cross-multiplying and simplifying the equations,

b = (ac) / (a+b)

Hence,b = (ac) / (a+b)

Learn more about logarithm,

https://brainly.com/question/1807994

#SPJ4

which different types of outputs are possible (points, lines, polygons) when performing intersect and union?

Answers

The different types of outputs that are possible when performing intersect and union include points, lines, and polygons.

Intersect: It is a binary operation that compares two shapes and returns the geometries that they have in common. The result of an intersect operation is either a point, line, or polygon, depending on the shapes being compared. If two points intersect, the result is a point. If two lines intersect, the result is a point or a line. If two polygons intersect, the result is a polygon that contains the intersecting area.

Union: It is a binary operation that combines two shapes into one. The result of a union operation is a polygon, line, or point, depending on the shapes being combined. If two points are combined, the result is a point. If two lines are combined, the result is a line or a polygon. If two polygons are combined, the result is a larger polygon that contains both shapes. In some cases, the result of a union operation may not be a single shape, but rather a set of shapes.

Learn more about binary operation here:

https://brainly.com/question/30828577

#SPJ11

In a class of students, the following data table summarizes the gender of the students
and whether they have an A in the class. What is the probability that a female student
does not have an A?
Has an A
Does not have an A
Female Male
4
8
5
11

Answers

A female student's probability of not receiving an A is 0.56, or 56%.

What makes probability so special?

Probability and probability, as well as its cognates in various modern languages, come from the educated Latin of the Middle Ages called probabilis, which Cicero used to refer to a viewpoint as being plausible or generally accepted. Ancient French probabilite is where the word probability came from (14 c.)

We must utilise the data in the table to determine the likelihood that a female student will not receive an A.

There are 16 male students and 9 female students in the class, according to the table. Of the nine female students, four received As compared to five Bs.

Hence, the The likelihood that a female student won't receive an A is: P (Female student does not have an A) = Total number of female students / Number of female students without an A

P

Female student does not have an A (Female student does not have an A) = 5/9 P(Female student does not have an A) = 0.56 or 56%.

To know more about probability visit:-
https://brainly.com/question/30034780

#SPJ1

65% of all students at a college still need to take another math class. if 46 students are randomly selected, find the probability that

Answers

The probability of selecting 46 students out of a college population where 65% still need to take another math class is 0.05433 or 5.433%.

The probability of selecting 46 students out of a college population of which 65% still need to take another math class can be calculated using the binomial probability formula. To calculate the probability, the following information is needed:

The total number of trials (N) or total number of studentsThe number of successes (r) or number of students who still need to take another math classThe probability of success (p) or 65%.


Using the binomial probability formula, we can calculate the probability of selecting 46 students out of a college population where 65% still need to take another math class as follows:

[tex]P(X=46) = (N!/((N-r)! * r!)) * (p^r) * (1-p)^(N-r)[/tex]

[tex]= (100!/((100-46)! * 46!)) * (0.65^46) * (1-0.65)^(100-46)[/tex]
[tex]= 0.05433[/tex]

Therefore, the probability of selecting 46 students out of a college population where 65% still need to take another math class is 0.05433 or 5.433%.

See more about binomial probability at: https://brainly.com/question/14984348

#SPJ11

Fill in the blanks basically find the missing value

Answers

Answer:

6 and 10

Step-by-step explanation:

first find what 1 min is in meters

1/3 is 8 so 8x3 = 1m which is 24

now divide based on the next two numbers

1/4 of 24 = 6

6x 1 = 6

now the next

24/12 = 2

2x5 = 10

these two results, 6 and 10, are the answers to the missing meter values

a car travels a distance of 340 km at an average speed 12km/h.how long does it take the car to travel this distance​

Answers

Answer:

We can use the formula:

time = distance ÷ speed

where distance is in kilometers (km) and speed is in kilometers per hour (km/h).

Substituting the given values, we get:

time = 340 km ÷ 12 km/h

time = 28.33 hours (rounded to two decimal places)

Therefore, it takes approximately 28.33 hours for the car to travel a distance of 340 km at an average speed of 12 km/h.

Answer:28hrs and 20min

Step-by-step explanation:

rgrghwrt

Which of the following is the fourth vertex needed to create a rectangle with vertices located at (5, 6), (9, 6), and (5, 3)? (5, –6) (5, –3) (9, –6) (9, 3)




PLSSS ANYONEEEE

Answers

(9,-3) as to find the fourth vertex, you can just replace each x = 5 coordinate by x = 9

Fill in the boxes to add the expressions.
(10x-4) + (−7+ x) = (10x +_____)+(-4+ _______)
=
__X +(__ )

Answers

The solution for this question is (10x-4) + (-7+ x) = (10x + x) + (-4 - 7) = 11x - 11

Why it is and what is expression in math?

(10x-4) + (-7+ x) = (10x + x) + (-4 - 7) = 11x - 11

Therefore, the missing values are:

The first missing value is "x", as we have combined the "10x" and "x" terms to get "11x".

The second missing value is "-11", as we have combined the "-4" and "-7" terms to get "-11".

Therefore, the final expression is: 11x - 11

In math, an expression is a combination of numbers, variables, and operations (such as addition, subtraction, multiplication, and division) that can be evaluated to produce a single value. An expression can contain constants (fixed numbers), variables (which represent unknown values), or a combination of both.

For example, "2 + 3" is an expression that represents the sum of 2 and 3, which can be evaluated to produce the value 5. Similarly, "4x - 2" is an expression that contains a variable (x) and represents the result of multiplying x by 4 and then subtracting 2.

To know more about expression related question visit:

https://brainly.com/question/14083225

#SPJ1

There are six Mountain Dews, four Pepsis, five Sierra Mists, nine Orange Crushes, seven NuGrapes, three Mug root beers, and six Canada Dry ginger ales in the fridge. Find the probability of selecting a NuGrape or a ginger ale. Show work

Answers

I Hope it is correct

Step-by-step explanation:

The total number of sodas in the fridge is:

6 + 4 + 5 + 9 + 7 + 3 + 6 = 40

The number of NuGrapes or ginger ales is:

7 (NuGrapes) + 6 (Canada Dry ginger ales) = 13

The probability of selecting a NuGrape or a ginger ale is the number of favorable outcomes (selecting a NuGrape or a ginger ale) divided by the total number of possible outcomes (selecting any soda):

Probability = Number of favorable outcomes / Total number of possible outcomes

Probability = 13 / 40

Probability = 0.325

So, the probability of selecting a NuGrape or a ginger ale is 0.325 or 32.5%.

The point (–1, 5)
(

1
,
5
)
is the solution to a system of linear equations. One of the equations is y=−2x+3

Answers

The equation of the line that passes through the given point (-1, 5) is y = -2x + 7.

The given point (–1, 5) is the solution to a system of linear equations.

One of the equations is y=−2x+3.

Let's discuss linear equations.

A linear equation is an algebraic equation that represents a straight line on the coordinate plane.

In the form y = mx + b,

where m is the slope and b is the y-intercept,

the general form of a linear equation is y = mx + b.

In the equation y = mx + b, m represents the slope of the line, and b represents the y-intercept of the line.

Now, let's find another equation of the given system of linear equations using the given point (-1, 5).

Given equation is y = -2x + 3.

Let's find the slope of the given equation.

Slope (m) = -2Therefore, the slope-intercept form of the equation is y = -2x + b.

To find b, substitute x = -1 and y = 5 in the above equation.

5 = -2(-1) + b Simplifying the above equation.

5 = 2 + b Adding 2 to both sides of the equation.

5 + 2 = b7 = b Therefore, the equation of the line that passes through the given point (-1, 5) is y = -2x + 7.

The system of linear equations is y = -2x + 3y = -2x + 7

For similar question on Linear equation.

https://brainly.com/question/28732353

#SPJ11

a university found that 10% of students withdraw from a math course. assume 30 students are enrolled. what is the probability that 5 or less will withdraw?

Answers

The probability that 5 or less students will withdraw from a math course if 30 students are enrolled is 0.6826.

This can be calculated using the binomial probability formula, which states that the probability of a certain number of successes in a certain number of trials is equal to the number of combinations of successes times the probability of each success. In this case, the probability of success (withdrawing) is 0.10 and the number of trials (students enrolled) is 30.

For this example, the probability of 5 or less successes (withdrawals) is calculated by adding together the probabilities of 0 successes, 1 success, 2 successes, 3 successes, 4 successes, and 5 successes. That gives us a probability of 0.6826.

This is equivalent to saying that 68.26% of students enrolled in a math course will not withdraw. It is also equivalent to saying that 31.74% of students enrolled in a math course will withdraw.

To illustrate this, if we assume that 30 students are enrolled in a math course, we would expect that approximately 19 students will not withdraw (68.26%) and approximately 11 students will withdraw (31.74%).

In conclusion, the probability that 5 or less students will withdraw from a math course if 30 students are enrolled is 0.6826.

See more about binomial probability at: https://brainly.com/question/14984348

#SPJ11

how would you interpret the finding of a correlation study that reported a linear correlation coefficient of 21.34?

Answers

A correlation coefficient of 21.34 is an impossible value.

In statistics, correlation is defined as the degree of association between two or more variables. Correlation research helps to establish whether a relationship exists between two variables, and if so, to what extent. The correlation coefficient is a statistical measure used to quantify the degree of association between two variables.

The correlation coefficient, which ranges from -1 to +1, indicates the strength of the relationship between the two variables. When the correlation coefficient is 0, it indicates that there is no correlation between the two variables. When the correlation coefficient is positive, it indicates that the two variables are directly related, whereas when the correlation coefficient is negative, it indicates that the two variables are inversely related.

In this case, a correlation study reported a linear correlation coefficient of 21.34, which is not possible. Correlation coefficients range from -1 to +1. The value of the correlation coefficient ranges from -1 to +1, where a value of 0 indicates no correlation, a value of 1 indicates perfect positive correlation, and a value of -1 indicates perfect negative correlation. Therefore, a correlation coefficient of 21.34 is an impossible value.

In this case, it is likely that the correlation coefficient was misreported or that a different statistical measure was used. It is important to carefully examine and verify statistical findings before drawing any conclusions or making decisions based on the results.

To know more about correlation coefficient refer here:

https://brainly.com/question/15577278

#SPJ11

Matt is organising an event. He buys some party bags and some toys for the party bags from a shop. The party bags are sold in packs. There are 105 party bags in each pack. Each pack costs £1.32 The toys are sold in packs. There are 84 toys in each pack. Each pack costs £4.15 Matt buys exactly the same number of party bags as toys. What is the least amount of money he could pay?​

Answers

The least amount of money he could pay for the conditions that he will for the given information is = £ 3053.4

What about least amount?

In mathematics, the term "least amount" is not commonly used. However, a similar term that is often used is "minimum".

The minimum value of a set of numbers or a function is the smallest value within that set or function. For example, if we have the set of numbers {2, 5, 7, 8, 10}, the minimum value is 2.

Similarly, in the context of optimization problems, we often seek to find the minimum value of a function to achieve the best possible outcome. This can involve finding the minimum value of a cost function in order to minimize the cost of a process, or finding the minimum value of a profit function to maximize the profit of a business.

According to the given information:

Set the number of party bags pack as x , toy pack as y

Since, 105 party bags in a pack , £1.32

84 toys in a pack £4.15.

Hence, 105x = 84y , cost = 105x × 1.32x + 84y × 4.15 = 763.35x

Find the least common multiple

Hence, 84 × 5 = 420 , 105 × 4 = 420

x  =4

y =5

least cost = 105 × 1.32 × 4 + 84×4.15 ×5

= £3053.4

To know more about least amount visit:

https://brainly.com/question/29714164

#SPJ1

If triangle ABC is a 30-60-90 degree triangle and we know the following
point A is (-4,-2)
point B is (4,-2)
then we must find point C. If the angle of C is 90 degrees and point C is in quadrant 1 then where is point C?

Answers

The coordinates of point C are (4, 2), which is located in quadrant 1.

In a 30-60-90 degree triangle, the side opposite the 30-degree angle is half the length of the hypotenuse, and the side opposite the 60-degree angle is √3/2 times the length of the hypotenuse. Since the side opposite the 30-degree angle is the shortest side, it must be the distance between points A and B, which is 8 units.

Let's call point C (x, y). Since angle C is 90 degrees, side AC is perpendicular to side AB, which means it is a vertical line that passes through point A. Similarly, side BC is perpendicular to side AB, which means it is a horizontal line that passes through point B.

Therefore, point C must lie on both the vertical line passing through A and the horizontal line passing through B. The equation of the vertical line passing through A is x = -4, and the equation of the horizontal line passing through B is y = -2. So we have the system of equations

x = -4

y = -2

Solving this system gives us the coordinates of point C: (-4, -2). However, this point is not in quadrant 1, as we desired.

To find a point C in quadrant 1, we need to flip the signs of the x and y coordinates of point C. So the coordinates of point C are (4, 2).

Learn more about coordinates here

brainly.com/question/30369728

#SPJ4

If spun 100 times, how many would you predict to be white?

Answers

1. The  probability of landing on red is 7/20.

2. I will predict 25 to be white.

3. I will predict 48 to be blue.

4. It will most likely land on red.

How many would you predict to be white?

Probability deals with the study of random events. It involves determining the likelihood or chance of an event occurring, based on the information available.

The basic formula for probability is:

P(event) = number of favorable outcomes / number of possible outcomes

number of possible outcomes = 7 + 5 + 4 + 4 = 20

1) P(red) = number of red / number of possible outcomes

P(red) = 7/20

2) when spun 100 times:

number of white = P(white) * 100

number of white = 5/20 * 100 = 25

3) when spun 240 times:

number of blue = P(blue) * 100

number of blue = 4/20 * 240 = 48

4) That will be the color with highest probability. That is color red with probability of 7/20.

Learn more about probability on:

https://brainly.com/question/24756209

#SPJ1

Other Questions
what invention during world war 2 by his company allowed howard hughes and his company to be classified as a government war armaments manufacture? the nurse is reviewing the results of a clotting study for a healthy 6-year-old. what would the nurse document as a normal prothrombin finding? at time an object is traveling to the right along the axis at a speed of with acceleration which statement is true? (a) the object will slow down, eventually coming to a complete stop. (b) the object cannot have a negative acceleration and be moving to the right. (c) the object will continue to move to the right, slowing down but never coming to a complete stop. (d) the object will slow down, moment a homebuyer is taking out a loan to purchase a home in florida, which is a lien theory state. the lender has them sign a promissory note and what other document? Need help too figure out these questions these are 2 outa 10 i have too do but these the hardest Find the X geometrypt.2 Which of the following selections best explains the law of human action described in this passage (paragraph 31)?Tom said to himself that it was not such a hollow world, after all. He had discovered a great law of human action, without knowing itnamely, that in order to make a man or a boy covet a thing, it is only necessary to make the thing difficult to attain. If he had been a great and wise philosopher, like the writer of this book, he would now have comprehended that Work consists of whatever a body is OBLIGED to do, and that Play consists of whatever a body is not obliged to do. And this would help him to understand why constructing artificial flowers or performing on a tread-mill is work, while rolling ten-pins or climbing Mont Blanc is only amusement. There are wealthy gentlemen in England who drive four-horse passenger-coaches twenty or thirty miles on a daily line, in the summer, because the privilege costs them considerable money; but if they were offered wages for the service, that would turn it into work and then they would resign.Answer choices for the above questionA. The harder something is to have, the more likely it is that people will want it.B. Most people dont appreciate the value of hard work.C. Its impossible to do most things without money.D. Whether or not a job is desirable depends on how much one is paid. give a summary of your results for the hydrolysis of disaccharides and polysaccharides. in your own words, explain why you saw these results. What will be the output of the following program segment? X=Mountain, Y=Molehill, Console.Writeline (X+Y) what is the term for an orbit that electrons occupy at a fixed distance from the nucleus; designated 1, 2, 3, 4 ...? group of answer choices energy level orbital shell subshell none of the above Consider the following function.f(x) = 2x^3 6x^2 + 5(a) Use the Intermediate Value Theorem and a graphing utility to find graphically any intervals of length 1 in which the polynomial function is guaranteed to have a zero. Verify your answers by using the table feature of the graphing utility. (Select all that apply.)(4, 3)(3, 2)(2, 1)(1, 0)(0, 1)(1, 2)(2, 3)(3, 4)(b) Use the zero or root feature of the graphing utility to approximate the real zeros of the function. (Enter your answers as a comma-separated list. Round your answers to three decimal places.)x = how would i do this cause im very lost someone please help suppose that iq scores have a bell-shaped distribution with a mean of 96 and a standard deviation of 17 . using the empirical rule, what percentage of iq scores are less than 79 ? please do not round your answer. what is the correct order in the energy flow in trophic levels? group of answer choices omnivores->autotrophs->decomposers->omnivores->carnivores decomposers->autotrophs->carnivores->herbivores->omnivores autotrophs->herbivores->omnivores->carnivores->decomposers herbivores->omnivores->autotrophs->carnivores->decomposers suppose the inlet stream contains 10 mol 10 mol ch4 ch 4 , along with excess oxygen, and the product stream contains 2 mol 2 mol ch4 ch 4 , 2 mol 2 mol co co , 6 mol co2 co 2 , and 16 mol h2o 16 mol h 2 o . what is the selectivity of co2 co 2 relative to co co in this reaction? on the hazard city map, the blue feature running through riverside and ralston is a river system. which direction is the river system flowing through hazard city? a 3.52 volt potential difference is placed across a 1,829.90 ohm resistor. how many electrons pass through the resistor in 3.85 seconds? why was the great wall of china built where it was? 15. MULTIPLE CHOICE Determine which statement is true given that CBX = SML. which attribute of god do you think is most overlooked or neglected today? what are we missing when we neglect that attribute?