A dance student wants to know the favorite type of dance class for students at The Dance Academy. She surveys each student in her ballet class. In which way could the results of her survey be most improved?
She could sample an equal number of students in each type of dance class.
She could sample a proportional number of students in each type of dance class.
She could sample one student in each type of dance class.
She could sample one teacher from each type of dance class.
Mark this and return

Answer:

Propotional Means corresponding in size, degree, or intensity. b : having the same or a constant ratio corresponding sides of similar triangles are proportional.

Answer:

8.25 per one article

Step-by-step explanation:

Answer:

8.25

Step-by-step explanation:

i hope this helps

Answer:

The equation is = I = [tex]e^{4.8}[/tex]

Step-by-step explanation:

As given ,

M - magnitude of an earthquake

I - intensity of earthquake

I₀ - intensity of a reference earthquake

The relation between the three is as follows :

M = log([tex]\frac{I}{I0}[/tex] )

As given -

M = 4.8,  I₀ = 1

⇒ 4.8 = log([tex]\frac{I}{1}[/tex]) = log(I)

⇒ 4.8 = log(I)

⇒I = [tex]e^{4.8}[/tex]

So, the equation becomes I = [tex]e^{4.8}[/tex]

Answer:

7

Step-by-step explanation:

÷

Answer:

40

Step-by-step explanation:

AFE=120 so arc AE is also 120

those 3 angles add up to 180 and 180-120-20=40

The measure of ∠C is 40°.

When two lines or rays intersect at a single point, an angle is created. The vertex is the term for the shared point. An angle measure in geometry is the length of the angle created by two rays or arms meeting at a common vertex.

Angle measure of central angle is equals to measure of intercepted arc.

External angle formed outside a circle,

= Half the difference of the major and minor arc =

Angle measure of AFE

= arc AE = 120°

Thus:

m∠C = 1/2(120 - 40)

m∠C = 40°

So, the angle measure of C is 40°

Therefore, 40° is the measure of ∠C.

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Answer:

18

Step-by-step explanation:

36 inches is in 1 yard, so if you divde that by 2 you get ur answer which is 18!

hope this helpped

Answer:

30cm3

Step-by-step explanation:

she already has: 60%:10

pure ones: 100%:x

need:90%:10+x

so u can get this eq:

6+x=9+0.9

0.1x=3

x=30

Answer:

i think is D

i hope it’s help you but if not DO NOT FORGET STAY SAFE AT HOME

Answer:

C, i think this is correct!

Answer:

1/21

Step-by-step explanation:

The baker makes 84 loaves of bread,

Out of the 84 bread, 4 of them got burn.

Fraction that the loaves does the burn will be expressed in 4/84 = 1/21.

Answer:

I think D

Step-by-step explanation:

But hopes it helps

Answer:

y = 4x + 5

Step-by-step explanation:

4x - y = -5

-4x        -4x

-y = -4x -5

/-1    /-1   /-1

y = 4x + 5

Answer:

Y = -4x + 5

Step-by-step explanation:

-4x from both sides

-y = -4x -5

divide both side by -1

y = -4x + 5

brainliest?

Answer:

5 inches high

Step-by-step explanation:

Answer:

x=9

Step-by-step explanation:

Divide by 4 on both sides in order to isolate x and get the answer.

Answer:

graph?

Step-by-step explanation:

Answer:  you forgot to show the answer choices but

When you have a linear equation, the x-intercept is the point where the graph of the line crosses the x-axis.

Hope this helps :)

Answer:

53

Step-by-step explanation:

I hope this helps. I hope its right.

Answer:

y=333x+6

Step-by-step explanation:

y=mx+b

change m to the slope

and b to the y cept'

Answer:

The solution is (4,250)

Step-by-step explanation:

This means that when a member of either gym (A or B) signs up for a four-month membership, they pay the same amount - $250.  Hope this helps :)

Answer:

x=-11 y=-4

Step-by-step explanation:

4x−6y=−20;−2x+4y=6

once you have this, try and find any number. i find trial and error easy if you can find the answer

225

What is 75 percent of 300.? = 225.

Answer:

a=300 and k=200

Step-by-step explanation:

Multiply the first equation by -10,and multiply the second equation by 1.

−10(a+k=500)

1(10a+3k=3600)

Becomes:

−10a−10k=−5000

10a+3k=3600

Add these equations to eliminate a:

−7k=−1400

Then solve−7k=−1400for k:

−7k=−1400 (Divide both sides by -7)

[tex]\frac{-7k}{-7} =\frac{-1400}{-7}[/tex]

Now that we've found k let's plug it back in to solve for a.

Write down an original equation:

a+k=500

Substitute200forkina+k=500:

a+200=500

a+200+−200=500+−200(Add -200 to both sides)

a=300

Hope this helps :)

Answer:

C.right circular cylinder

hope it's helpful ❤❤❤❤

THANK YOU.

Answer:

option c

Step-by-step explanation:

right circular cylinder

Answer: b=-18

Step-by-step explanation:

1/3b+57=3

Subtract 57

1/3b=-54

Divide by 1/3 (basically you’re dividing by 3)

p=-18

Answer:

13

Step-by-step explanation:

Simplify both sides of the equation.

(Combine Like Terms)

Step 2: Add 3 to both sides.

4x−3+3=49+3

4x=52

Step 3: Divide both sides by 4.

Answer:

Exact Form: x ≈ − 1 2 , 1.04081022

Decimal Form: x ≈ − 0.5 , 1.04081022

Step-by-step explanation:

Solve for x by simplifying both sides of the equation, then isolating the variable.

Answer:

First term is 19

7th term =a+6d=127 is answer

Step-by-step explanation:

I hope it's helpful!

Answer: Perpendicular lines

Step-by-step explanation:

The first equation (y - 2 = x + 20) represents a line with a positive slope and a y-intercept of 22, while the second equation (y - 2 = -(x + 20)) represents a line with a negative slope and a y-intercept of -18.

The two equations, y - 2 = x + 20 and y - 2 = -(x + 20), represent linear equations in standard form. Let's break down each equation:

y - 2 = x + 20

This equation represents a linear relationship between x and y. It states that the value of y minus 2 is equal to the value of x plus 20. This equation can be rearranged to slope-intercept form (y = mx + b) by isolating y:

y = x + 20 + 2

y = x + 22

The equation y = x + 22 represents a line with a slope of 1 and a y-intercept of 22.

y - 2 = -(x + 20)

Similarly, this equation represents a linear relationship between x and y. It states that the value of y minus 2 is equal to the negative of the value of x plus 20. This equation can also be rearranged to slope-intercept form by isolating y:

y = -(x + 20) + 2

y = -x - 20 + 2

y = -x - 18

The equation y = -x - 18 represents a line with a slope of -1 and a y-intercept of -18.

In summary, the first equation (y - 2 = x + 20) represents a line with a positive slope and a y-intercept of 22, while the second equation (y - 2 = -(x + 20)) represents a line with a negative slope and a y-intercept of -18.

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Answer:

(22, 23)

Step-by-step explanation:

x + ( x + 1) = 45

2x + 1 = 45

2x = 45 - 1

2x = 44

x = 44 ÷ 2

x = 22

22, 23

Answer:

L=7.94 feet, W=9.88 feet

Step-by-step explanation:

perimeter=78 feet

LxW=78

2L-6=W

substitute

Lx(2L-6)=78

2L^2-6L=78

2L^2-6L-78=0

factor

(2L-15.86)(L+4.95)=0

2L=15.88, L=7.94

L=-7.94 feet