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geliyahmoore1
03.08.2019 •
Mathematics
Sally has christmas lights the roof is 16 feet high the ladder is 20 ft long how far away is letter from wall
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Ответ:
You can use Pythagorean Theorem to find the answer. Think of the ladder as the hypotenuse of a right triangle with the wall and the ground as the legs.
a^2 + b^2 = c^2
16^2 + b^2 = 20^2
b^2 = 20^2 - 16^2
b^2 = 144
b = 12 ft
Ответ:
5. Substitution property
6. Subtraction property
7. Distributive property
8. Substitution property