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notka56 [123]
3 years ago
9

A 25-foot ladder is placed 7 feet from the wall, as shown.

Mathematics
2 answers:
Svetlanka [38]3 years ago
7 0

Answer:

The answer is 8 feet.

Step-by-step explanation:

Let x = height where the ladder hits the building

7 squared+x squared=25 squared

49+x squared=625

x squared=576

x=24 feet

Let x = distance from wall:

x^2 + 20^2 = 25^2

x^2 + 400 = 625

x^2 = 225

x = 15 feet

Ludmilka [50]3 years ago
6 0

Answer:

The answer is 8 feet.

Step-by-step explanation:

Let x = height where the ladder hits the building

7 squared+x squared=25 squared

49+x squared=625

x squared=576

x=24 feet

Let x = distance from wall:

x^2 + 20^2 = 25^2

x^2 + 400 = 625

x^2 = 225

x = 15 feet

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