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3 years ago

6

A painter leans a 20 ft ladder against a building. The base of the ladder is 8 ft from the building. To the nearest foot, how hi

gh on the building does the ladder reach

1 answer:

Shalnov [3]3 years ago

5 0

Answer:

Step-by-step explanation:

This is asking what is A

Formula A squared + B squared = C squared

A=x

B=8

C=20

X^2+ 8^2=20^2

8 squared is 64

20 squared is 400

400-64 is 336

X*X=336 find the square root of 336 =18.3

CHECK

18.3*18.3+ 8*8=398.89 which is super close to 400

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2 years ago

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Rom4ik [11]

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Step-by-step explanation:

<h3>Given information</h3>

$f(x)=x+4$

$g(x)=2x+3$

<h3>Question 15. f(g(2))</h3>

<u>Substitute values into the first function</u>

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<h3>Question 16. g(f(2.5))</h3>

<u>Substitute values into the first function</u>

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<h3>Question 17. g(f(-5))</h3>

<u>Substitute values into the first function</u>

$f(-5)=(-5)+4$

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<u>Substitute the values of the first function into the second</u>

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<u>Substitute values into the first function</u>

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Hope this helps!! :)

Please let me know if you have any questions

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