Question

А support wire 12 yards long is attached to the top of a utility pole 10

yards tall and is then stretched taut. To the nearest tenth of a yard, find
how far from the base of the pole wire will be attached from the ground.
Hint: Solve using this equation:
2
2
x² + 10² = 12²

Answer 1

6.6 yd

Explanation:

`a^(2)`+
`b^(2)`=
`c^(2)`

`10^(2)`+
`b^(2)`=
`12^(2)` Substitute a= 10 and c=12

100+
`b^(2)`=144 Evaluate the Powers

`b^(2)`=44 Subtract 100 on both sides.

b=
`√(44)` Square root both sides b>0 so you dont need ⊥

b=6.6 Use a calculator to evaluate.