Answers
Answer:
A = 8
B = -4
Step-by-step explanation:
Related Questions
hi, um whats 33 divided by 548 whith an remainder ? but no decimal
Answers
Answer:
no calculator?
Step-by-step explanation:
33 /548 w/o a remainder is... 0 b/c the answer is 0.0602189781....
your question is not a good question.
giving 50 points it's grade 9 algebra 1 help please
Answers
Answer:
(a) y = 34.27 + 7.79x
(b) r = 0.98 (nearest hundredth)
(c) strong, positive correlation - as the students spends more time studying, their test scores increase.
Step-by-step explanation:
Correlation measures how closely two variables are linked.
If two variables are correlated, you can draw a line of best fit on the scatter plot.
Explanatory (independent) variable is drawn on the x-axisResponse (dependent) variable is drawn on the y-axis.Linear regression is a method for finding the equation of a line of best fit on a scatter plot.
The regression line of y on x is: y = a + bx
where a = y-intercept and b = gradient
If b is positive, the variables are positively correlated.
If b is negative, the variables are negatively correlated.
Part (a)Inputting the data from the table into a calculator and using the statistical function:
a = 34.27272727
b = 7.792207792
Therefore, the linear equation is:
y = 34.27 + 7.79x
Part (b)The correlation coefficient is the Product Moment Correlation Coefficient (r) and measures the strength of the linear correlation between two variables.
Again, inputting the data from the table into a calculator and using the statistical function:
r = 0.9815741571
⇒ r = 0.98 (nearest hundredth)
Part (c)The r value is always between +1 and -1. The closer it is to +1 or -1, the stronger the correlation between the two variables.
Values close to +1 mean a strong, positive correlation.Values close to -1 mean a strong, negative correlation.Values close to zero mean a weak correlation.Therefore, as r is very close to +1, the correlation coefficient suggests a strong, positive correlation. In the context of the problem, this suggests that as the students spends more time studying, their test scores increase.
PLS HELP WILL MARK YOU BRAINLIEST! NO FAKE ANSWERS!
Find the mode of the data
Answers
Answer:
shoe size (US) 6
Step-by-step explanation:
Mode = most frequently occurring data value
From inspection of the table, we can see that the highest frequency (most number of women) is 20, so therefore the modal class of the data is shoe size (US) 6.
Answer:
Shoe Size (US) = 6Step-by-step explanation:
The mode of the data is the modal class with the highest frequencyIt is 20, present in the 4th columnIts corresponds with the modal class : Shoe Size (US) = 6Find the smallest value of k when 280 is a perfect square
Answers
Answer:
i don't know do you play free fire
How to solve 16x-8y=72
Answers
**Kind note:
Since there are two variables in one equation, it is impossible to determine a specific value for x and y. (Unless the trial-and-error method is used).
How to determine the value of x using the equation (16x - 8y = 72)?
To determine the value of "x", we need to isolate the x-variable on one side. The value (or expression) obtained on the opposite side of the x-variable will be the value of x.
How to determine the value of y using the equation (16x - 8y = 72)?
To determine the value of "y", we need to isolate the y-variable on one side. The value (or expression) obtained on the opposite side of the y-variable will be the value of y.
Determining the x-variable:
⇒ 16x - 8y = 72
⇒ 16x = 72 + 8y [Adding 8y to both sides of the equation]
⇒ 16x/16 = (72 + 8y)/16 [Dividing 16 to both sides of the equation]
⇒ x = 9/2 + y/2 [Simplifying both sides of the equation]
⇒ x = (9 + y)/2 [Combining the denominators]
Determining the y-variable:
⇒ 16x - 8y = 72
⇒ 16x - 8y - 16x = 72 - 16x [Subtracting 16x both sides of the equation]
⇒ -8y = 72 - 16x [Simplifying both sides of the equation]
⇒ -8y/-8 = (72 - 16x)/-8 [Dividing -8 to both sides of the equation]
⇒ -8y/-8 = 72/-8 - 16x/-8
⇒ -8y/-8 = -72/8 + 16x/8
⇒ y = -9 + 2x [Simplifying both sides of the equation]
First simplify it to suitable form of slope intercept then you can get values
16x-8y=722x-y=9y=2x-9The pairs are
(1,-7)(2,-5)(3,-3)(4,-1)(5,1)And so on
PLSSS HELP IF YOU TURLY KNOW THISS
Answers
Answer:
2 1/2
Step-by-step explanation:
Turn both fractions into improper fractions, multiply the whole number by the denominator and add the numerator.
4 3/4
4 * 4 + 3 = 19
19/4
2 1/4
2 * 4 + 1 = 9
9/4
Now since she drank 2 1/4 gallons of juice, subtract 9/4 from 19/4.
19/4 - 9/4 = 10/4
Now turn back into a mixed fraction, do this by putting 4 into ten twice and taking the remainder and putting it as numerator:
4 * 2 = 8
10 - 8 = 2
2 1/2
A bag contains 5 marbles. There are 3 yellow marbles and 2 red marbles.
Suppose that Glen chooses a marble first and then Kris chooses one.
Answer the questions to show the probability that Kris will get a yellow marble if Glen chooses a yellow one first.
1. What is the probability that Glen will get a yellow marble? Show how you calculated this probability.
2. After Glen chooses a marble, how many are left in the bag?
3) If Glen chooses a yellow marble, how many yellow marbles are left?
4. If Glen chooses a yellow marble first, and does not put it back in the bag, what is the probability that Kris chooses a yellow marble?
Answers
2. No matter what colour marble glen picks, he took 1 marble out of the bag so we’re left with 4 marbles.
3. We started with 3 yellow marbles, if he takes one yellow marble out of the bag then we are left with 2 yellow marbles in the bag.
4. Since there are now 4 marbles in the bag, 2 yellow marbles and 2 red marbles, the probability of choosing a yellow marble would be 2/4 or 50%.
Hope this helps
Evaluate cos 300' without using a calculator,
2
O A. 1 /
O B. 1
о
c
va
Answers
Answer:
[tex]Cos \ 300 = \dfrac{1}{2}[/tex]
Step-by-step explanation:
[tex]\sf \boxed{Cos \ (2\pi - \theta) = Cos \ \theta}[/tex]
Cos 300 = Cos ( 360 - 60)
= Cos 60
[tex]\sf = \dfrac{1}{2}[/tex]
Annabelle and Navene are multiplying (4275)(4372).
Annabelle's Work Navene's Work
(4275)(4372) = 42 + 375 + 2 = 4577 (4275)(4372) = 42⋅375⋅2 = 46710
Is either of them correct? Explain your reasoning
Answers
Answer:
it means the b that equals the c that equals the d so do the hokey pokey and put booger on paper and answer is 599958
Step-by-step explanation:
well sorry
:D
HELP URGENT!!! The surface area of a globe is about 1018 in^2. What is the diameter of the globe? Round to the nearest whole number.
PLS EXPLAIN THE STEPS
Answers
The diameter of the spherical globe that has a surface area of about 1018 in.² is: 18 inches.
What is the Surface Area of a Sphere?Surface area = 4πr², where r is the radius, which is half of the diameter.
The globe is a sphere with a surface area of 1018 in.².
1018 = 4πr²
Solve for r
1018 = 4πr²
1018/4π = r²
81.0 = r²
r = √81.0
r = 9 in.
Diameter = 2(r) = 2(9)
Diameter of the sphere = 18 in.
Learn more about the surface area of a sphere on:
https://brainly.com/question/1658430
#SPJ1
My coach bought 88 cupcakes to split with 11 people, What would my fair share be??
( 1 Person. )
Answers
Answer:
You would get 8 cupcakes
Step-by-step explanation:
Since we're splitting C (cupcakes) with P (people) and we know that c = 88 and p = 11 we have to do the equation c / p or 88 / 11 which equals 8.
how do calculate probablility
Answers
Answer:
Let me get my notes real quick. Give me a few seconds. Ok, in order to dermine propability you first do:
1: Determine the event (Like picking out 2 red marbles from a bag.) with 1 outcome (In this case, getting the marbles.)
2: Find the total amount of outcomes, like 1 7 2 9 1 2 2 2, (Example: What is the propability of geeting a 2? 4/8/50%)
3: Divide the number of events (How many times you've done it.) by the number of possible outcomes.
That's all there is.
If the hypotenuse of a right triangle has length 9 feet and one of the other sides has length 2 feet, what is the length of the remaining side, in feet?
[tex]\sf A) \sqrt{11}[/tex]
[tex] \sf B) \sqrt{7}[/tex]
[tex]\sf C) \sqrt{85}[/tex]
[tex]\sf D) \sqrt{77}[/tex]
[tex]\sf E) 7[/tex]
Answers
Apply Pythagorean theorem
P²=H²-B²P²=9²-2²P²=81-4P²=77P=√77Option D
Answer:
[tex]\sf D) \sqrt{77} \: ft [/tex]
Step-by-step explanation:
Given that,
→ Perpendicular (x) = ?
→ Hypotenuse (h) = 9 feet
→ Base (b) = 2 feet
Now by using the Phythagoras theorem,
→ (Hypotenuse)² = (Perpendicular)² + (Base)²
→ (h)² = (x)² + (b)²
→ (9)² = (x)² + (2)²
→ 81 = (x)² + 4
→ (x)² = 81 - 4
→ (x)² = 77
→ [ x = √(77) ]
Thus, length of remaining side is √(77) ft.
What is the volume of Trisha's
pyramid. in cubic inches?
9 in
6 in
8 in
Answers
Answer:
its 72 in cubed because you do the base area/2 x the height divided by 3 so the base area is 48 and divide by 2 is 24 and then multiply by the height of the pyramid which is 9 and that will give you 216 and divide by 3 which is 72
Step-by-step explanation:
please mark as brainliest
8 + (7 + 1) 2 ÷ 4 ⋅ 1 over 2 whole to the power of 4
Answers
Answer:24divided by 16/64
Step-by-step explanation:
8x[7+1]2/4x4/16
8x8/2/4x4/16
48/2/4x4/16
48/2/16/64
24/16/64
Family B lives in Boise, Idaho. Their total household monthly income is $4,675.
Use the graph to calculate the central angle of each section for Family B. Then, complete the following table. Note: Express each angle measure as a number, rounded to the nearest tenth of a degree.
Family B
1. Housing
° ____
2. Food
° ____
3. Childcare
° ____
4. Transportation
° ____
5. Insurance
° ____
6. Other Needs
° ____
7. Taxes
° ____
Best answer gets brainliest!
Answers
Answer:
See below
Step-by-step explanation:
The pie chart gives the percentage of the $ 4675 that goes to each expense
Housing 16 % .16* 4675 = $ 748
Food 16% .16 * 4675 = $748
Childcare 18% .18 * 4675 = $ 841.50
Trnsport 13% .13 * 4675 = $ 607.75
etc I think you can do the others---- right ?
The fare charged by a taxi company is described by the linear equation y=3.5x +4.5, where x is the number of miles traveled and y is the tota cost. What is the rate of change, in dollars per mile?
$3.50 per mile
$10.00 per mile
$4.50 per mile
$8.00 per mile
Answers
Answer:
$3.50 per mile
Step-by-step explanation:
Slope-intercept form of a linear equation: [tex]y=mx+b[/tex]
(where m is the slope and b is the y-intercept)
Given linear equation: [tex]y=3.5x+4.5[/tex]
(where x is the number of miles traveled and y is the total cost)
The rate of change is the slope of the linear equation.
Therefore, the rate of change is $3.50 per mile.
Compare to slope intercept form of line
Slope=m=3.5Now
Rate of change=slope
Rate of change
$3.50 per mileSolve the equation 7=-10s-3
Answers
Answer:
s= -1
Step-by-step explanation:
I believe 7=-10s-3
(s=-1)
A wall in Alex and Carla Dinu's garden is to be built using brick that is 5 3/8 inches wide and a mortar joint that is 3/4
inch wide. Using the diagram, what is the height of the wall?
Answers
Answer: 29 7/8
Step-by-step explanation:
The height of wall will be 29.875 inch.
How to measure height of the wall?The height of the wall can be measured by the sum of total height of bricks and the height of mortar joint between the bricks.
According to question there is 4 mortar joint and 5 rows of bricks.
How to determine the no. of mortar joint?1 mortar joint is situated between 2 bricks. So, if the no. of bricks is n, then mortar joint between them will be n-1.
So, width of one mortar joint is= 3/4 inch
Width of 4 mortar joints = (3/4)*4=3 inch
width of one brick is= 5.375 inch
Width of 5 bricks = 5.375*5=26.875 inch
Height of the wall
= width of 4 mortar joints + width of 5 bricks
= 3+26.875
=29.875inch or 29 7/8 inch
Therefore, the height of wall will be 29.875 inch.
Learn more about the height
Here: https://brainly.com/question/1739912
#SPJ2
There are 110 students on a bus filled with 129 people. What is the ratio of students to teachers?
i need help
Answers
Answer:
110 : 19
students : teachers
please mark as brainliest thank you
A set of equations is given below: equation e: m = 4n 1 equation f: m = 6n 8 which statement describes a step that can be used to find the solution to the set of equations? equation f can be written as m = 6(m − 1) 8. equation f can be written as m = 4(m − 8) 1. equation f can be written as 4n 1 = 6n 8. equation f can be written as n 1 = 6n 8.
Answers
The statement that describes a step to find the solution to the set of equations is the equation f can be written as 4n + 1 = 6n + 8
How to solve the equation?The system of equations is given as:
m = 4n + 1
m = 6n + 8
To solve the equation, we simply substitute 4n + 1 for m in the second equation.
So, we have:
4n + 1 = 6n + 8
Hence, the equation f can be written as 4n + 1 = 6n + 8
Read more about system of equations at:
https://brainly.com/question/14323743
HELPPP frenss!!! HURRY j
Answers
Answer:
(2, -7)
x = 2
y = -7
Step-by-step explanation:
Let's solve this system of equations by elimination.
Start by multiplying the first equation by 2:
[tex]2(4x)+2(3y)=2(-13)\\8x+6y=-26[/tex]
Next, multiply the second equation by 3:
[tex]3(-5x)+3(2y)=3(-24)\\-15x+6y=-72[/tex]
Notice that both equations now have a "6y", meaning we can subtract both equations and thereby eliminating the variable "y" from the equation:
[tex]8x+6y-(-15x+6y)=-26-(-72)\\8x+6y+15x-6y=-26+72\\23x=46[/tex]
Divide both sides by 23
[tex]x=2[/tex]
Substitute 2 for "x" to solve for "y".
[tex]4x+3y=-13\\4(2)+3y=-13\\8+3y=-13[/tex]
Subtract 8 from both sides:
[tex]3y=-21[/tex]
Divide both sides by 3:
[tex]y=-7[/tex]
Therefore the answer is:
[tex](x, y)=(2, -7)[/tex]
Additional Comments:
Note that we can only divide, subtract, multiply, or add both sides of the equation by the same quantity due to the Division, Subtraction, Multiplication, or Addition Property of Equality. These properties state that if you divide/subtract/multiply/add one side of the equation by one quantity, you must do the same to the other side of the equation so that it remains an equation.
The circumference of a circle is 18π ft. What is the area, in square feet? Express your answer in terms of \piπ.
HELp pls
Answers
Answer:
A = 81 pi ft^2
Step-by-step explanation:
We know the circumference of a circle is given by
C = 2 * pi *r
18 pi = 2 * pi *r
Divide each side by 2 pi
18 pi / ( 2pi) = 2 pi r / ( 2pi)
9 = r
We can find the area by
A = pi r^2
A = pi ( 9)^2
A = 81 pi ft^2
Which is a factor of x2 + 5x – 24?
(xO
(x-6)
O (x + 6)
(8 - x) O
(8 + x) O
Answers
Answer:
D.) (x + 8)
Step-by-step explanation:
Which two values multiply to (-24) and add to (5)?
These values are (-3) and (8):
-3 x 8 = -24
-3 + 8 = 5
As such, the factors include these two values. One of the factors (x + 8), is one of the answer choices.
x² + 5x - 24 = (x - 3)(x + 8)
Tristan needed to get his computer fixed. He took it to the repair store. The technician at the store worked on the computer for 4.75 hours and charged him $50 for parts. The total was $643.75. What was the cost of labor, per hour?
Answers
Answer:
its $125
thank me later <3
The cost of labor, per hour, will be equal to $125.
What is an expression?The mathematical expression combines numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.
Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also denote the logical syntax's operation order and other properties.
Given that Tristan needed to get his computer fixed. He took it to the repair store. The technician at the store worked on the computer for 4.75 hours and charged him $50 for parts.
The cost for labor per hour is,
TC = 50 + 4.75x
643.75 = 50 + 4.75x
x = ( 643.75 - 50) / 4.75
x = $125
Therefore, the cost of labor, per hour, will be equal to $125.
To know more about an expression follow
https://brainly.com/question/25968875
#SPJ2
Can anyone help me with this?
Answers
Answer:
a. x=4 or x=−10
b. x= 3/2 or x= −8
Step-by-step explanation:
(FOR LETTER A)
Step 1: Factor left side of equation.
(x−4)(x+10)=0
Step 2: Set factors equal to 0.
x−4=0 or x+10=0
x=4 or x=−10
(FOR LETTER B)
Step 1: Factor left side of equation.
(2x−3)(x+8)=0
Step 2: Set factors equal to 0.
2x−3=0 or x+8=0
x= 3/2
or x= −8
Quadratic function h can be used to model the height in feet of a rocket from the ground
t seconds after it was launched. The graph of the function is shown.
Answers
Answer:
t = -b 2a = -120/(-32) = 3.75 The height of the rocket is a maximum 3.75 seconds after its launch. To find the height we only need to plug into the model: s(3.75) = -16(3.752) + 120(3.75) + 80 = 305 The maximum height of the rocket is 305 feet.
Step-by-step explanation:
The maximum value of graph of function is (3.75,225).
How to build the equation and find value of x-axis ?
We consider, the equation is y=a(x-0)(x-7.5)
Now, when x=6 and y = 144
144=6a(-1.5)
⇒a= - 144/9
⇒a= -16
Now, y= -16(x-0)(x-7.5)
⇒ y= -16[tex]x^{2}[/tex]+120x
∴ x = -b/2a = -120/(-32) = 3.75
How to find y co-ordinate ?When x=3.75, then the value of y is maximum.
∴ [tex]y_{max}[/tex] = [tex]-16(3.75)^{2}+120*3.75[/tex]
= 225
Hence, the maximum value of y is 225.
So, the required co-ordinate is (3.75,225).
Learn more about quadratic function here :
https://brainly.com/question/27492507
#SPJ2
A bowl of cereal weights 60g.Is that more or less than 1 kg?
Answers
Answer:
Less than 1 kg
Step-by-step explanation:
1 gram = 0.001kg
So 60g = 0.06kg
What are the solutions to this quadratic equation?
x^2 + 13= 8x +37
A. X = 4 V10
B. X = –2 + 4v10
C. X = –4 4/10
D. X= 4 2V10
Answers
Answer:
B.
Step-by-step explanation:
x² + 13 = 8x + 37
PLS HELP
Select all of the pairs of expressions that are equivalent.
A c + d + c + d and 2(c + d)
B 4y + 3y - x and -x + 7y
C 2(3n + 4m) and 6n + 4m
D 8p - 5r and 5r - 8p
E 4j + 6k and 2(2j + 3k)
Answers
Answer:
A
B
E
Step-by-step explanation:
For A, we can simplify it to 2c + 2d by combining like terms. We can then factor out 2 and get 2(c + d).
For B, we combine like terms and 7y - x. We can move the x in front and get -x + 7y.
For E we can factor out 2 and get 2(2j + 3k).
Hope this helps