Answers
A
no, because they are both right triangles and
the one on the left is 88° at the right anglr
Related Questions
Find the area of the triangle below.
Be sure to include the correct unit in your answer.
15 ft
5 ft
22 ft
Answers
Answer:
What is the base, height? Is it a right triangle?
Consider this equation
1/x-1 = | x-2 |
Using three iterations of successive approximation, what is the approximate solution to the equation? Use the graph as a starting point.
A. x ≈ 43/16
B. x ≈ 21/8
C. x ≈ 41/16
D. x ≈ 19/8
Answers
The approximate solution to the equation 1/x-1 = |x-2| after three iterations of successive approximation is x ≈ 5/2 or x ≈ 2.5.
To solve the equation 1/x-1 = |x-2| using three iterations of successive approximation, we will start with an initial guess and refine it using an iterative process.
Given that the equation involves absolute value, we will consider two cases:
Case 1: x - 2 ≥ 0
In this case, |x-2| simplifies to x-2, and the equation becomes 1/(x-1) = x-2.
Case 2: x - 2 < 0
In this case, |x-2| simplifies to -(x-2), and the equation becomes 1/(x-1) = -(x-2).
Now, let's perform the successive approximation:
Iteration 1:
Let's start with an initial guess, x = 2.
Case 1: When x - 2 ≥ 0,
1/(2-1) = 2-2,
1/1 = 0,
which is not true.
Case 2: When x - 2 < 0,
1/(2-1) = -(2-2),
1/1 = 0,
which is not true.
Since our initial guess did not satisfy the equation in either case, we need to choose a different initial guess.
Iteration 2:
Let's try x = 3.
Case 1: When x - 2 ≥ 0,
1/(3-1) = 3-2,
1/2 = 1,
which is not true.
Case 2: When x - 2 < 0,
1/(3-1) = -(3-2),
1/2 = -1,
which is not true.
Again, our guess did not satisfy the equation in either case.
Iteration 3:
Let's try x = 2.5.
Case 1: When x - 2 ≥ 0,
1/(2.5-1) = 2.5-2,
1/1.5 = 0.5,
which is true.
Case 2: When x - 2 < 0,
1/(2.5-1) = -(2.5-2),
1/1.5 = -0.5,
which is not true.
Our guess of x = 2.5 satisfies the equation in Case 1.
Therefore, the approximate solution to the equation 1/x-1 = |x-2| after three iterations of successive approximation is x ≈ 5/2 or x ≈ 2.5.
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Pls help I need this answer
Answers
Answer:
B , D , A
Step-by-step explanation:
(4x³ - 4 + 7x) - (2x³ - x - 8)
distribute the first parenthesis by 1 and the second by - 1
= 4x³ - 4 + 7x - 2x³ + x + 8 ← collect like terms
= 2x³ + 8x + 4 ← equivalent to expression B
---------------------------------------------------------------
(- 3x² + [tex]x^{4}[/tex] + x) + (2[tex]x^{4}[/tex] - 7 + 4x) ← remove parenthesis
= - 3x² + [tex]x^{4}[/tex] + x + 2[tex]x^{4}[/tex] - 7 + 4x ← collect like terms
= 3[tex]x^{4}[/tex] - 3x² + 5x - 7 ← equivalent to expression D
------------------------------------------------------------------
(x² - 2x)(2x + 3)
each term in the second factor is multiplied by each term in the first factor, that is
x²(2x + 3) - 2x(2x + 3) ← distribute parenthesis
= 2x³ + 3x² - 4x² - 6x ← collect like terms
= 2x³ - x² - 6x ← equivalent to expression A
Combine like terms I need help pls!!!!
Answers
Answer:
21 - 12p
Step-by-step explanation:
I hope this helps and I'm super sorry if I'm wrong!
7 • -2p and 7 • 3
-14p + 21 + 2p
Then combine like terms
-14 + 2p
-12p + 21
Question 1 (1 point)
Caroline wants to create a helix shape by using the screw modifier. Unfortunately,
when she tries the screw modifier, it keeps spinning her model around an axis
without any vertical movement. What does she need to change to get the vertical
movement that will give it a helix-like shape?
Screw option needs to be set to something greater than 0.
Screw option needs to be set to 0.
Screw option needs to be set to something less than 0.
Screw option needs to be turned off.
Question ? (1 point) ✓ Saved
Answers
The correct answer is Screw option needs to be set to something greater than 0.
To get the vertical movement and create a helix-like shape using the screw modifier, Caroline needs to change the screw option to something greater than 0.
The screw option determines the amount of vertical displacement or height of the helix shape.
By setting the screw option to a value greater than 0, Caroline can control the vertical movement of the model as it spirals along the axis, resulting in a helix-like shape.
Therefore, the correct answer is:
Screw option needs to be set to something greater than 0.
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Find the measurement of each angle in a triangle. You need to provide me 3 different measurement of angles. please help !!
Answers
Answer:
x=30 degrees, 2x=60 degrees, 3x=90 degrees
Step-by-step explanation:
in a triangle the sum of angles is 180 so
x+2x+3x=180
6x=180
x=180/6
x=30
so the angle x is 30 degrees, the angle that is 2x is 60 degrees and the angle the angle 3x is 90
If all the values in the series are same, then
Select one:
a. A.M = G.M = H.M
b. A.M > G.M > H.M
c. A.M < G.M < H.M
d. None of these
e. A.M ? G.M ? H.M
Note: A.M means Arithmetic mean, H.M means Harmonic mean, while G.M means Geometric mean.
Any answer without justification will be rejected automatically.
Answers
If all the values in the series are the same, the A.M, G.M, and H.M are all equal and can be represented as A.M = G.M = H.M = x.
If all the values in the series are the same, the arithmetic mean (A.M), geometric mean (G.M), and harmonic mean (H.M) will all be equal.
Let's consider a series with the same value repeated n times, denoted as x:
Series: x, x, x, ..., x (n times)
Arithmetic Mean (A.M):
The arithmetic mean is calculated by summing all the values in the series and dividing by the total number of values. In this case, the sum of all the values is nx, and since there are n values, the arithmetic mean is (nx) / n = x. So, A.M = x.
Geometric Mean (G.M):
The geometric mean is calculated by taking the nth root of the product of all the values in the series. In this case, the product of all the values is x^n, and since there are n values, the nth root of x^n is x. So, G.M = x.
Harmonic Mean (H.M):
The harmonic mean is calculated by taking the reciprocal of the arithmetic mean of the reciprocals of all the values in the series. Since all the values are the same, the reciprocal of each value is 1/x. The arithmetic mean of the reciprocals is (1/x + 1/x + ... + 1/x) / n = (n/x) / n = 1/x. Taking the reciprocal of 1/x gives x. So, H.M = x.
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express 132 base 6 as a number in base five
Answers
The given number 132 from base 6 to base 10 by expanding its digits using powers of 6. The number 132 in base 6 is equal to 211 in base 5.
To express the number 132 in base 6 as a number in base 5, we need to convert the given number from base 6 to base 10 and then from base 10 to base 5.
In base 6, the digits range from 0 to 5. The positional values of the digits increase from right to left by powers of 6. Let's break down the given number 132 in base 6:
1 * 6^2 + 3 * 6^1 + 2 * 6^0
= 1 * 36 + 3 * 6 + 2 * 1
= 36 + 18 + 2
= 56 in base 10
Now, we have the number 56 in base 10. To convert it to base 5, we divide the number by 5 and record the remainders from right to left until the quotient becomes 0.
56 divided by 5 is 11 with a remainder of 1.
11 divided by 5 is 2 with a remainder of 1.
2 divided by 5 is 0 with a remainder of 2.
The remainders in reverse order give us 211 in base 5.
Therefore, the number 132 in base 6 is equal to 211 in base 5.
In summary, we converted the given number 132 from base 6 to base 10 by expanding its digits using powers of 6. Then, we divided the resulting number in base 10 by 5 to obtain the equivalent number in base 5 by recording the remainders. The final result is 211 in base 5.
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You flip a coin twice. The first flip lands tails up and the second flip also lands tails up. It is independent or dependent?
Answers
Answer:
Independent
Step-by-step explanation:
Flipping a coin is independent of each flip.
Answer:
Independent
Step-by-step explanation:
The flipping of two coins are an independent event. The reason for this is that one coin flip does not affect the outcome of the other flip. An example of a dependent event would be coat sales and weather, as cold weather would affect the amount of coats sold.
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Have a GREAT day!!!
pls help me with this!!!!
Answers
Answer:
The equation of a hyperbola with co-vertices at (0, 7) and (0, -7) and a transverse axis that is 12 units long is:
x²/36 - y²/49 = 1.
Therefore, the correct equation is: x²/36 - y²/49 = 1.
Place point Q on the graph to indicate an unemployment rate of 100 percent, point R to indicate full employment, and point S to indicate where the U.S. economy usually operates.
Answers
In a Production Possibility Curve (PPC) with product output Y on the vertical axis and product output X on the horizontal axis the following points are described as follows.
Explanation for PPC- Point Q represents an unemployment rate of 100 percent. It is located at the origin, where both axes intersect, indicating no product output due to complete unemployment.
- Point R signifies full employment and is located at the maximum product output on the X-axis, showing the economy's capacity when all resources are fully utilized.
- Point S indicates where the US economy typically operates, within the usual range of product output levels on the X-axis, reflecting a balanced unemployment rate that includes frictional and structural unemployment.
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How would I find cos?
Answers
When [tex]sin(\theta) = -0.42[/tex] and [tex]\pi < \theta < 3\pi/2[/tex], the value of [tex]cos(\theta)[/tex] is approximately 0.9071.
To find the value of cos([tex]\theta[/tex]) given[tex]sin(\theta) = -0.42[/tex] and [tex]\pi < \theta < 3\pi/2[/tex], we can use the trigonometric identity:
[tex]sin^2(\theta) + cos^2(\theta) = 1[/tex]
Since we are given sin(theta) = -0.42, we can substitute this value into the equation:
[tex](-0.42)^2 + cos^2(\theta) = 1[/tex]
Simplifying:
[tex]0.1764 + cos^2(\theta) = 1[/tex]
Subtracting 0.1764 from both sides:
[tex]cos^2(\theta) = 0.8236[/tex]
Taking the square root of both sides (since cos(theta) is positive):
[tex]cos(\theta) = \sqrt{(0.8236)} \\cos(\theta) = 0.9071[/tex]
Therefore, when [tex]sin(\theta) = -0.42[/tex] and [tex]\pi < \theta < 3\pi/2[/tex], the value of [tex]cos(\theta)[/tex]is approximately 0.9071.
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what is the value of x in the triangle
Answers
Answer:
7
Step-by-step explanation:
In an 30-60-90 right triangle, the longer leg is the shorter leg multiplied by [tex]\sqrt{3}[/tex]
So [tex]7\sqrt{3} =x*\sqrt{3[/tex]
[tex]7=x[/tex]
x=7
Answer:
A. 21
Step-by-step explanation:
This is a 30-60-90 triangle, where you have one 30° angle, one 60°, and one 90° (aka right) angle.
The sides of a 30-60-90 triangle adhere to the following rules:
The side opposite the 30° angle is the shortest side and we can call its length "x".The side opposite the 60° angle is the medium length side and its length is given by x * √3. This means its length is the product of the length of the side opposite the 30° angle and √3.The side opposite the 90° (right) angle is the longest side (aka the hypotenuse) and its length is given by 2x. This means its length is twice the length of the side opposite the 30° angle.Since 7√3 is the length of the side opposite the 30° angle, the entire expression represents x.
Since the length of the side opposite the 60° angle is given by x * √3, the length of this side is (7√3)(√3).
Simplifying gives us 7*3, which is 21.
Thus, the value of x in the triangle is 21 (answer choice A.)
According to these three facts, which statements are true?
HELP PLEASE !!!
Answers
The correct statements are: B. Circle F and circle D are similar and D. The center of circle F is (0, 3).
Explanation:
A. The radius of circle F is not 28. When a circle is translated, the radius remains the same. So, circle F has the same radius as circle D, which is 7.
B. Circle F and circle D are similar. Similarity means that the two shapes have the same shape but possibly different sizes. Since circle F is a translation of circle D, it has the same shape and proportions as circle D. Therefore, they are similar.
C. Circle F and circle D are not congruent. Congruence means that two shapes are identical in both shape and size. While circle F and circle D have the same shape, they have different positions due to the translation. Thus, they are not congruent.
D. The center of circle F is (0, 3). When a circle is translated horizontally by a certain amount, the x-coordinate of the center changes, while the y-coordinate remains the same. Since circle F is translated 2 units to the right, the x-coordinate of the center of circle F would be 2 + 0 = 2. As the y-coordinate remains the same, the center of circle F is (2, 3). Therefore, the statement is incorrect.
In summary, the correct statements are B and D. Circle F and circle D are similar, and the center of circle F is (0, 3). Therefore, Option B and D are correct.
The question was incomplete. find the full content below:
According to these three facts, which statements are true?
• Circle D has center (2, 3) and radius 7.
• Circle F is a translation of circle D, 2 units right.
• Circle F is a dilation of circle D with a scale factor of 4.
Select each correct answer.
A. The radius of circle F is 28.
B. Circle F and circle D are similar.
C. Circle F and circle D are congruent.
D. The center of circle F is (0, 3)
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Algebra Question
Jasmine played outside today. She asked her mother if she could play outside tomorrow. Her mother said she could play outside only if the difference between today’s temperature and tomorrow’s temperature is less than 10 degrees. If today’s temperature was 93, what is the range of temperatures that would allow Jasmine to play outside tomorrow?
Address each of these parts:
a. Define the variable for the situation.
b. Write an absolute value inequality to represent the situation (tolerance).
c. Solve the inequality.
Referring back to the last question, using words, write the interpretation of the solution in terms of the range of temperatures that will allow Jasmine to play outside. Then, graph the solution.
Answers
Answer:
a. Let tomorrow's temperature be x
b.
[tex] |93 - x | < 10[/tex]
c.
[tex] - 10 < 93 - x < 10 \\ - 103 < - x < - 83 \\ 103 > x > 83[/tex]
Find the area of quadrilateral QUAD, whose vertices are:
Q (-4, 3), U (3, 6), 1 (6, 3), and D (1, -4).
Answers
The area of quadrilateral QUAD is 2.5 square units.
To find the area of quadrilateral QUAD with vertices Q (-4, 3), U (3, 6), 1 (6, 3), and D (1, -4), we can use the Shoelace formula (also known as Gauss's area formula or the surveyor's formula).
The Shoelace formula states that the area of a polygon with vertices (x1, y1), (x2, y2), ..., (xn, yn) can be calculated as:
[tex]Area = 1/2 * |(x1y2 + x2y3 + ... + xny1) - (x2y1 + x3y2 + ... + x1yn)|[/tex]
Using this formula, we can calculate the area of quadrilateral QUAD as follows:
Area = [tex]1/2 * |(-46 + 33 + 6*(-4) + 13) - (33 + 6*(-4) + 1*(-4) + (-4)*3)|[/tex]
Simplifying the expression, we get:
[tex]Area = 1/2 * |(-24 + 9 - 24 + 3) - (9 - 24 - 4 - 12)|Area = 1/2 * |(-36) - (-31)|Area = 1/2 * |-36 + 31|Area = 1/2 * |-5|Area = 1/2 * 5Area = 5/2[/tex]
The area of quadrilateral QUAD is 2.5 square units.
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The area of quadrilateral QUAD is 17.5 square units.
The area of quadrilateral QUAD, we can use the Shoelace Formula, also known as the Gauss's Area Formula.
The formula states that if the coordinates of the vertices of a polygon are given in order, then the area of the polygon can be calculated using the following formula:
Area = 1/2 × |(x1y2 + x2y3 + ... + xn-1yn + xny1) - (y1x2 + y2x3 + ... + yn-1xn + ynx1)|
Let's apply this formula to find the area of quadrilateral QUAD:
Q (-4, 3)
U (3, 6)
A (6, 3)
D (1, -4)
Area = 1/2 × |(-4 × 6 + 3 × 3 + 6 × (-4) + 3 × (-1)) - (3 × 3 + 6 × (-4) + (-4) × (-1) + (-1) × (-4))|
Area = 1/2 × |(-24 + 9 - 24 - 3) - (9 - 24 + 4 + 4)|
Area = 1/2 × |(-42) - (-7)|
Area = 1/2 × |-42 + 7|
Area = 1/2 × |-35|
Area = 1/2 × 35
Area = 17.5
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Describe a sequence of transformations that maps quadrilateral MATH onto quadrilateral
M"A"T"H".
Answers
A sequence of transformations that maps quadrilateral MATH onto quadrilateral M"A"T"H" is a rotation of 180° about the origin and a translation by 1 unit left and 1 unit up.
What is a rotation?In Mathematics and Geometry, the rotation of a point 180° about the origin in a clockwise or counterclockwise direction would produce a point that has these coordinates (-x, -y).
Additionally, the mapping rule for the rotation of a geometric figure 180° counterclockwise about the origin is given by this mathematical expression:
(x, y) → (-x, -y)
Coordinates of point M (2, 4) → Coordinates of point M' = (-2, -4)
By applying a translation to the image (M') vertically upward by 1 unit and horizontally left by 1 unit, the new coordinate M" of quadrilateral M"A"T"H" include the following:
(x, y) → (x - 1, y + 1)
M' (-2, -4) → (-2 - 1, -4 + 1) = M" (-3, -3)
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Roger can run one mile in 9 minutes. Jeff can run one mile in 6 minutes. If Jeff gives Roger a 1 minute head start, how
long will it take before Jeff catches up to Roger? How far will each have run?
They each will have run of a mile.
Answers
It will take approximately 5.33 minutes for Jeff to catch up to Roger. Both Jeff and Roger will have run a distance of 1 mile.
Let's calculate the time it takes for Jeff to catch up to Roger and the distance each will have run.
First, we need to determine how much distance Roger covers during the 1-minute head start. Since Roger runs one mile in 9 minutes, in 1 minute, he would cover 1/9 of a mile.
Now, let's set up an equation to represent the time it takes for Jeff to catch up to Roger:
Distance covered by Jeff = Distance covered by Roger + Distance covered during the head start
Let's denote the time it takes for Jeff to catch up as t minutes. During this time, Jeff runs a distance of 1 mile, while Roger runs a distance of 1/9 of a mile (from the head start).
Distance covered by Jeff = Distance covered by Roger + Distance covered during the head start
1 mile = (1/9) mile + (6 minutes) × t × (1 mile/6 minutes)
Now, let's solve this equation to find the time it takes for Jeff to catch up:
1 = (1/9) + (1/6)t
Multiplying the equation by the least common multiple (LCM) of 9 and 6, which is 18, to clear the fractions:
18 = 2 + 3t
Subtracting 2 from both sides:
16 = 3t
Dividing by 3:
t = 16/3 = 5.33 minutes (rounded to two decimal places)
Therefore, it will take approximately 5.33 minutes for Jeff to catch up to Roger. Both Jeff and Roger will have run a distance of 1 mile.
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The veterinarian has prescribed carprofen 2.2 mg/kg BID x30d. Weight of patient is 34kg. Concentration is 75mg tablet. What is the amount of medication needed for 30 days?
Answers
The amount of medication needed for 30 days is approximately 59.84 tablets of carprofen.
To calculate the amount of carprofen medication needed for 30 days, we need to consider the prescribed dosage, the weight of the patient, and the concentration of the tablets.
The prescribed dosage is 2.2 mg/kg BID x 30d. This means that the patient should take 2.2 milligrams of carprofen per kilogram of body weight, twice a day, for 30 days.
The weight of the patient is 34 kilograms. So, we need to calculate the total amount of carprofen needed for the entire treatment period.
First, we calculate the daily dosage by multiplying the weight of the patient (34 kg) by the prescribed dosage (2.2 mg/kg).
Daily dosage = 34 kg * 2.2 mg/kg = 74.8 mg/day.
Since the medication is prescribed twice a day, we multiply the daily dosage by 2 to get the total dosage per day.
Total dosage per day = 74.8 mg/day * 2 = 149.6 mg/day.
Finally, to find the total amount of medication needed for 30 days, we multiply the total dosage per day by the number of days.
Total medication needed = 149.6 mg/day * 30 days = 4488 mg.
Since the concentration of the tablets is 75 mg, we divide the total medication needed by the tablet concentration to find the number of tablets required.
Number of tablets needed = 4488 mg / 75 mg = 59.84.
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cindy bought 7/8 yard of ribbon at a craft store. Jacob bought 4/5 the length of ribbon as Cindy. How many yards of ribbon did Jacob buy?
Answers
Jacob bought 0.7 yards of ribbon.
To find out how many yards of ribbon Jacob bought, we need to determine 4/5 of the length of ribbon that Cindy bought.
Cindy bought 7/8 yard of ribbon. To find 4/5 of this length, we multiply 7/8 by 4/5:
(7/8) * (4/5) = (7 * 4) / (8 * 5) = 28/40
To simplify the fraction, we can divide both the numerator and denominator by their greatest common divisor, which is 4:
(28/4) / (40/4) = 7/10
Therefore, Jacob bought 7/10 yard of ribbon.
However, we can convert this fraction to a mixed number or decimal to express it in yards.
To convert 7/10 to a mixed number, we divide the numerator (7) by the denominator (10):
7 ÷ 10 = 0 with a remainder of 7
So, 7/10 is equivalent to 0 7/10 or 0.7 yards.
Therefore, Jacob bought 0.7 yards of ribbon.
In summary, Jacob bought 7/10 yard or 0.7 yards of ribbon.
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if you apply the changes below to the quadratic pareent function, F(x)=x^2 what is the equation of the new function? shift 6 units right. shift 4 units down.
Answers
The equation of the new function after shifting 6 units right and 4 units down is f(x) = (x + 6)² - 4.
If we are to apply the changes below to the quadratic parent function, F(x) = x², what is the equation of the new function, given that we are to shift 6 units to the right and 4 units down? We will approach this question by following the steps outlined below.
Step 1: Identify the parent function F(x) = x² and its transformations
Step 2: Write the equation of the new function
Step 3: Simplify the new equation of the function.Step 1: Identify the parent function F(x) = x² and its transformations
Here, we are given the quadratic parent function F(x) = x² and two transformations: shift 6 units right and shift 4 units down.
The general equation for the horizontal and vertical shifts of a quadratic function is given by:f(x) = a(x - h)² + k, where a, h, and k are constants.
The value of a determines the direction of opening of the parabola, while (h, k) represents the vertex of the parabola.
If a > 0, the parabola opens upwards, while a < 0, the parabola opens downwards. If the values of (h, k) are positive, the parabola is shifted right and up, respectively. On the other hand, if the values of (h, k) are negative, the parabola is shifted left and down, respectively.
Therefore, given the quadratic parent function F(x) = x² and two transformations: shift 6 units right and shift 4 units down, we can represent these changes by the following:
a = 1 (since the parabola opens upwards)h = -6 (since we are shifting the parabola 6 units to the right)k = -4 (since we are shifting the parabola 4 units down)
Step 2: Write the equation of the new function Now that we have identified the constants a, h, and k, we can write the equation of the new function as follows:f(x) = a(x - h)² + kf(x) = 1(x - (-6))² + (-4)Replacing the constants a, h, and k in the equation, we have:f(x) = (x + 6)² - 4
Step 3: Simplify the new equation of the function.f(x) = (x + 6)² - 4= (x + 6)(x + 6) - 4= x² + 12x + 36 - 4= x² + 12x + 32Therefore, the equation of the new function after shifting 6 units right and 4 units down is f(x) = x² + 12x + 32.
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a) Write a linear system to model the situation:
For the school play, the cost of one adult ticket is $6 and the cost of one student ticket is $4. Twice as many student tickets as adult tickets were sold. The total receipts were $2016.
b) Use substitution to solve the related problem:
How many of each type of ticket were sold?
Answers
Answer:
There were 126 student tickets sold and 252 adult ticket sold.
Step-by-step explanation:
Let x be the number of adult tickets sold
y be the number of students tickets sold
Twice as many student tickets as adult tickets were sold
a.
x = 2y ---equation 1
6x + 4y = 2016 ---equation 2
b.
Substitute equation 1 to equation 2
6(2y) + 4y = 2016
12y + 4y = 2016
16y = 2016
Divide both sides of the equation by 16
16y/16 = 2016/16
y = 126
Substitute y = 126 to equation 1
x = 2y
x = 2(126)
x = 252
determine the value of x
Answers
Answer:
x = 11.62
Step-by-step explanation:
opp / adj would be tangent, so the equation would be 4*tan(71) giving us 11.616, and rounding to the nearest hundredth gives you 11.62
Hope this helps :)
please help quick
Which of the following are solutions to the quadratic equation? Check all that
apply.
Answers
The correct solutions to the quadratic equation are:
c. -8
e. 2
To determine the solutions to the quadratic equation 2x^2 + 6x - 10 = x^2 + 6, we need to solve for x.
First, let's simplify the equation by combining like terms:
2x^2 + 6x - 10 - x^2 - 6 = 0
x^2 + 6x - 16 = 0
Now, we can solve this quadratic equation by factoring or by using the quadratic formula.
By factoring:
(x + 8)(x - 2) = 0
Setting each factor equal to zero, we get:
x + 8 = 0 --> x = -8
x - 2 = 0 --> x = 2
So, the solutions to the quadratic equation are x = -8 and x = 2.
Now, let's check the given options:
a. -2: This value is not a solution to the equation.
b. 1/3: This value is not a solution to the equation.
c. -8: This value is a solution to the equation.
d. -1/2: This value is not a solution to the equation.
e. 2: This value is a solution to the equation.
f. 8: This value is not a solution to the equation.
The following are the proper answers to the quadratic equation: c. -8 e.2
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3. The numbers of activities that students in two
classes participate in are shown below.
Class M
0
0
1
2
2
+
3
4 5
Number of Activities
Class N
:
+
6
3
4
Number of Activities
5
6
+
7
7
+
8 9
+
8
9
Which statement is correct?
A The distribution for Class M is approximately
symmetric.
B The distribution for Class M has at least one
outlier.
The median number of activities for Class N
is less than for Class M.
D The spread of the number of activities for
Class N is less than for Class M.
Answers
The statement that is correct option d: The spread of the number of activities for Class N is less than for Class M.
The term 'spread' in mathematics refers to the difference between the largest and smallest values in a dataset or the range of the data. It's the extent to which the dataset is spread out.The median is the center of a dataset. It's the number that lies in the middle of the sorted values. Half the values are greater than the median, while the other half are lesser than the median.
An outlier is a value that is very different from the other values in the dataset.In class M, there are no outliers. The distribution is skewed to the right since most students have only a few activities, and some have many. The median is between 2 and 3.
In class N, there are no outliers. Most students have a moderate number of activities, and the spread is less than in Class M. The median is between 5 and 6.Hence, the correct statement is The spread of the number of activities for Class N is less than for Class M.The correct answer is d
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Millman’s golfing group is terrific for a group of amateurs. Are they ready to turn pro? Here’s the data. (Hint: Remember that the lower the score [in golf], the better!)
Milkman’s Group: size 9, average score 82, standard deviation 2.6
The pros: size 500, average score 71, standard deviation 3.1
Answers
Based on the average scores and standard deviations, it appears that Millman's group still has room for improvement before they can reach the level of professional golfers.
To determine whether Millman's golfing group is ready to turn pro, we can compare their performance to that of professional golfers. Based on the provided data, Millman's group consists of 9 amateurs with an average score of 82 and a standard deviation of 2.6.
On the other hand, the professional golfers consist of 500 individuals with an average score of 71 and a standard deviation of 3.1.
To make a meaningful comparison, we can look at the average scores of the two groups. The average score is an indicator of the overall performance, with lower scores being better in golf.
In this case, the professional golfers have an average score of 71, while Millman's group has an average score of 82. This suggests that the professional golfers perform better, on average, than Millman's group.
However, it is also essential to consider the standard deviation, which measures the variability of scores within each group. A smaller standard deviation indicates less variation and greater consistency in performance.
The professional golfers have a standard deviation of 3.1, while Millman's group has a standard deviation of 2.6. This suggests that Millman's group has slightly less variation in scores compared to the professional golfers.
Overall, based on the average scores and standard deviations, it appears that Millman's group still has room for improvement before they can reach the level of professional golfers.
The professional golfers demonstrate better performance, on average, and a slightly higher variability in scores compared to Millman's group. Therefore, it would be advisable for Millman's group to continue refining their skills and striving to improve their scores before considering turning pro.
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What is the surface area of a triangular with 6, 7cm 4cm 12cm
Answers
The surface area of the given triangle is approximately 33.74 square centimeters.
To calculate the surface area of a triangle, we need the lengths of two sides and the included angle between them. However, in this case, you provided the lengths of all three sides (6 cm, 7 cm, and 12 cm).
To determine the surface area, we can use Heron's formula, which is applicable to triangles with all three side lengths known.
Heron's formula states that the surface area (A) of a triangle with side lengths a, b, and c is given by:
[tex]A = \sqrt(s \times (s - a) \times (s - b) \times (s - c))[/tex]
where s is the semi perimeter of the triangle, calculated as:
s = (a + b + c) / 2
Plugging in the given side lengths, we have:
s = (6 cm + 7 cm + 12 cm) / 2 = 25 / 2 = 12.5 cm
Now we can substitute the values into Heron's formula:
[tex]A = \sqrt(12.5 cm \times (12.5 cm - 6 cm) \times (12.5 cm - 7 cm) \times (12.5 cm - 12 cm))[/tex]
[tex]= \sqrt(12.5 cm \times 6.5 cm \times 5.5 cm \times 0.5 cm)[/tex]
= √(1137.5 cm^4)
≈ 33.74 cm^2
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A total of 60% of the customers of a fast food chain order a hamburger, french fries, and a drink. if a random sample of 15 cash register receipts is selected, what is the probability that less than 10 will show that the above three food items were ordered?
Answers
The probability that less than 10 out of 15 cash register receipts will show the three food items ordered is approximately 0.166.
To calculate the probability that less than 10 out of 15 cash register receipts show that the hamburger, french fries, and a drink were ordered, we can use the binomial probability formula. The formula for the probability of obtaining exactly k successes in n trials is:
P(X = k) = (nCk) * p^k * (1 - p)^(n - k)
where:
P(X = k) is the probability of obtaining k successes,
n is the number of trials,
p is the probability of success in a single trial, and
(nCk) is the binomial coefficient, which represents the number of ways to choose k successes out of n trials.
In this case, we want to find the probability of less than 10 out of 15 receipts showing the three food items ordered. We need to calculate the probabilities for k = 0, 1, 2, ..., 9, and sum them up.
Let's calculate the probabilities using the formula:
P(X < 10) = P(X = 0) + P(X = 1) + P(X = 2) + ... + P(X = 9)
where:
n = 15 (number of trials),
p = 0.60 (probability of success, i.e., ordering hamburger, french fries, and a drink).
Using a binomial calculator or a statistical software, we can calculate each individual probability and then sum them up. The result will be the probability that less than 10 out of 15 receipts show the three food items ordered.
The probability that less than 10 out of 15 cash register receipts will show the three food items ordered is approximately 0.166.
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how to distribute x(3-x)
Answers
Answer:
3x - x²
Step-by-step explanation:
x(3 - x)
each term in the parenthesis is multiplied by the x outside. This is called the Distributive law
= (x × 3) + (x× - x)
= 3x + (- x²)
= 3x - x²
The answer is:
3x - x²Work/explanation:
To simplify this expression, we will use the distributive property:
[tex]\sf{x(3-x)}[/tex]
Distribute the x:
[tex]\sf{x\cdot3-x\cdot x}[/tex]
[tex]\sf{3x-x^2}[/tex]
Therefore, the answer is 3x - x².What is the difference quotient of the function f(x) = 12x + 1?
Answers
The difference quotient of the function f(x) = 12x + 1 is 12.
The difference quotient of a function measures the average rate of change of the function between two points. To find the difference quotient of the function f(x) = 12x + 1, we can follow these steps:
Select two points on the function, let's call them x and x + h, where h is a small positive value.
Evaluate the function at those two points to get the corresponding y-values. For f(x) = 12x + 1, we have:
f(x) = 12x + 1
f(x + h) = 12(x + h) + 1
Calculate the difference quotient by subtracting the values and dividing by h:
[f(x + h) - f(x)] / h
= [(12(x + h) + 1) - (12x + 1)] / h
= [12x + 12h + 1 - 12x - 1] / h
= (12h) / h
= 12
In this case, since the function is linear with a slope of 12, the difference quotient is constant and equal to the slope of the function. This means that for every unit increase in x, the function f(x) increases by 12.
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