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jasenka [17]
3 years ago
7

The number of workers, f(x), needed to complete a building is given by the function below where x represents the number of floor

s in the building.
Select the correct statement.


When f(3) = 18, the 3 represents the the number of workers needed and the 18 represents number of floors.

When f(3) = 18, the 3 represents the number of floors and the 18 represents the number of workers needed.

When f(4) = 48, the 4 represents the number of floors and the 48 represents the number of workers needed.

When f(4) = 48, the 4 represents the the number of workers needed and the 48 represents number of floors.
Mathematics
1 answer:
Artist 52 [7]3 years ago
7 0

Answer:

When f(4) = 48, the 4 represents the number of floors and the 48 represents the number of workers needed.

Step-by-step explanation:

Just took the test

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In a city, the rainfall was recorded in inches each month for 12 months. What type of graph would
pychu [463]

Answer:

Bar graphs

Step-by-step explanation:

To best display something over time you should use something like a bar graph. I hope that helps! :)

6 0
3 years ago
Given f(x)=4x+5 and g(x)= x^2+x; find (f∘g)(-5)<br> Please show all steps thank you
Greeley [361]

Answer:

(f\circ g)(-5)=85

Step-by-step explanation:

We are given:

\displaystyle f(x)=4x+5\text{ and } g(x)=x^2+x

And we want to find:

(f\circ g)(-5)

This is equivalent to:

\displaystyle =f(g(-5))

So, we will evaluate g(-5) first, which yields:

\displaystyle g(-5)=(-5)^2+(-5)=25-5=20

So:

=f(g(-5))=f(20)

Then:

\displaystyle f(20)=4(20)+5=80+5=85

Therefore:

(f\circ g)(-5)=85

6 0
3 years ago
Number 20 pls I need help with this one
Norma-Jean [14]
He uses 5/8 tanks of gas in one week.

In 5 he will use, 5/8 *5 = 25/8 in 5 weeks 
This can be simplified too:
3.125 tanks of gas

The answer is, 25/8 tanks of gas or 3.125 tanks of gas

3 0
3 years ago
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tresset_1 [31]
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5 0
3 years ago
Read 2 more answers
The surface area of a sphere is 576pi square units. Which choice represents the volume of the sphere?
Leona [35]

Answer:

\large\boxed{V=2304\pi}

Step-by-step explanation:

The formula of a surface area of a sphere:

S.A.=4\pi R^2

R - radius

We have

S.A.=576\pi

Substitute and solve for R:

4\pi R^2=576\pi         <em>divide both sides by π</em>

4R^2=576          <em>divide both sides by 4</em>

R^2=144\to R=\sqrt{144}\\\\R=12

The formula of a volume of a sphere:

V+\dfrac{4}{3}\pi R^3

Substitute:

V=\dfrac{4}{3}\pi(12^3)=\dfrac{4}{3}\pi(1728)=(4)\pi(576)=2304\pi

3 0
3 years ago
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