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2 years ago

What is the inverse of y=4x-16

Mathematics

1 answer:

dem82 [27]2 years ago

7 0

Answer:

x=y/4 + 4

Step-by-step explanation:

y=4x-16

-need to isolate x

add 16 to both sides.

y+16=4x

divide by 4 on both sides.

y/4 + 4 = x

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2 years ago

Mr. Dyer is leaning a ladder against the side of his house to repair the roof. The top of the ladder reaches the roof, which is

boyakko [2]

Answer:

5 meters.

Step-by-step explanation:

Given:

Mr. Dyer is leaning a ladder against the side of his house to repair the roof.

The top of the ladder reaches the roof, which is 3 meters high.

The base of the ladder is 4 meters away from the house, where Mr. Dyer's son is holding it steady.

Question asked:

How long is the ladder?

Solution:

Here we found that a right angle triangle is formed in which base and height is given and we have to find the longest side of the triangle.

Base = 4 meters

Height = 3 meters

Length of the ladder = ?

By Pythagoras theorem:

Square of longest side = Square of base + Square of height

$(Longest\ side)^{2} = 4^{2} +3^{2}$

$(Longest\ side)^{2} = 16+9$

$(Longest\ side)^{2} = 25$

Taking root both side :-

$\sqrt[2]{(Longest\ side)^{2} } =\sqrt[2]{25}$

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Thus, length of ladder is 5 meters.

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3 years ago

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Colt1911 [192]

Answer:

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Step-by-step explanation:

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2 years ago