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Drupady [299]
3 years ago
15

A roofer leaned a 16 foot ladder against a house. If the base of the ladder is 5 feet from the house how high up the house does

the ladder reach?
Mathematics
1 answer:
WITCHER [35]3 years ago
6 0

Answer:

 15.1 feet up the wall

Step-by-step explanation:

This is a Pythagorean theorem question

The ladder is the hypotenuse or c

the distance from the wall is a leg or a

and the wall is the other leg or b

a² + b² = c²

5² + b² = 16²

25  + b² = 256

-25            -25

          b² = 231

         √        √

         √b² = √ 231

           b = 15.1

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2 years ago
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Hello from MrBillDoesMath!

Answer:

The first choice ( -12, 20)



Discussion:

Using matrix multiplication we find the equations:


1x  + 1y = 8                     (A)

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