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NeX
[460]
3 years ago
13
A 25 foot ladder rests against a buliding . The base lf the ladder is 15 feet away from the base of the building. At what height
does the ladder rest on the building (geometry , pythagorean theorem)
Mathematics
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1
answer:
professor190
[17]
3 years ago
3
0
X^2+15^2=25^2
X^2+225=625
Isolate X
X^2=400
Take the square root on both sides
X=positive and negative 20 but in this case the negative is thrown out because you can't have a negative side
Answer: 20
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