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3 years ago

Hello. please answer this question, I WILL mark brainliest :)

Mathematics

1 answer:

Ivanshal [37]3 years ago

5 0

Answer:

1. D) 0.113

2 C) 11

Step-by-step explanation:

1. #males that chose super strength/total males

$\frac{25}{222}$ = 0.113

2. the relative frequency can be converted to a percent which is 11.3%

given that a percent is out of 100, the expected number would be 11

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Find the slope of the line that contains the points named. X(2, -1), Y(0, 4)

fgiga [73]

Answer:

- 4/3 0r - 1 1/3 0r - 1.33333333 ( the 3 keeps repeating)

Step-by-step explanation:

I would suggest to use a table so....

x y

2 0

-1 4

from 0 to 4 you add 4

from 2 to -1 you subtract 3

so y/x

4/-3 = - 1 1/3 or - 1.333333

Hope this helped a little!

8 0

3 years ago

What is (3x2+x-1)(x^4-2x+1)

Inga [223]

Answer:

−

Step-by-step explanation:

simp

7 0

3 years ago

Read 2 more answers

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zlopas [31]

The answer for x is 33.69°.

4 0

3 years ago

.........??????????????

Oliga [24]

Answer:

The table shows a proportional relationship: YES

The constant of proportionality is k=7

y = 7x

Step-by-step explanation:

Proportions

A direct proportion is a relation between variables where their ratio is a constant value. This means that if y and x are proportional, then:

y = kx

Where k is the constant of proportionality. It can be calculated by solving the equation for k:

$\displaystyle k=\frac{y}{x}$

We are given a table with 4 pairs of values. If the relationship between the variables is proportional, then the ratio y/x should be constant.

Let's verify some points:

$\displaystyle k=\frac{63}{9}=7$

$\displaystyle k=\frac{28}{4}=7$

$\displaystyle k=\frac{14}{2}=7$

$\displaystyle k=\frac{77}{11}=7$

Since all the ratios are equal,

The table shows a proportional relationship: YES

The constant of proportionality is k=7

The equation for the relationship is

y = 7x

7 0

3 years ago

Hello, can anyone help me im stuck

Ratling [72]

Answer:

124.5

Step-by-step explanation:

We need to use two different area formulas to get our final answer.

We need the area formula for the triangle = (h*b) / 2; h = height, b = base.

We also need the area for the circle = $\pi r^2$ . r is radius, we will replace pi with 3.14 per instructions.

To start off, let's do the circle. A = 3.14*r^2. r is given to us, r is 8.

So, just plug this into a calculator:

$3.14(8^2)=200.96$

This would be the area of the circle if it was full, however, we only have half of the circle, so we will divide the area in half to get our final circle area, which is 100.48 ft.

Now, for the triangle. Our height is the radius of the circle, which is 8. And our base is 6 feet. Use the formula to get the area for the triangle.

A = 8*6 / 2 = 24

The area of the triangle is 24 feet. Now, we will combine the triangle area and circle area to get our final answer.

100.48 + 24 = 124.48

Round to the nearest hundredth and you get: 124.5 ft^2

6 0

2 years ago