1 year ago

Help me please. I NEED HELP.

Mathematics

1 answer:

lord [1]1 year ago

7 0

Answer:

Step-by-step explanation:

i got it rright.........

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A ladder is leaning against a wall. The top of the ladder is 9 feet (ft) above the ground. If the bottom of the ladder is moved

Komok [63]

Step 1

First situation

when a ladder is leaning against a wall

Let

x-------> the distance of the bottom of the ladder from the wall

L-------> the length of the ladder

Find the length of the ladder

Applying the Pythagorean Theorem

$L^{2} =x^{2}+ 9^{2}$ ------> equation $1$

Step 2

Second situation

when the ladder will be lying flat on the ground

Find the length of the ladder

In this situation the length of the ladder is equal to

$L=x+3$

square both sides

$L^{2}=(x+3)^{2}$ ------> equation $2$

Step 3

equate equation $1$ and equation $2$

$x^{2}+ 9^{2}=(x+3)^{2}\\x^{2}+81=x^{2} +6x+9\\ 6x=81-9\\6x=72\\x=12\ ft$

therefore

the answer is

the length of the ladder is $12\ ft$

see the attached figure to better understand the problem

5 0

3 years ago

Answer choices are

NeTakaya

Answer:

53 miles per hour

Step-by-step explanation:

It makes sense that speed = distace/ time

Therefore, you need to divide 212 by 4 = 53

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3 years ago

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It would still be a circle

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3 years ago

Can someone help me on this one

Zepler [3.9K]

They are fractions right

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3 years ago