Question

Find the length here asap

Answer 1

A, 40.16

Explanation:

cosθ = adjacent (BC) / hypotenuse (AB)

cos 17° = BC / 42

BC = 40.16

Answer 2

`\boxed{BC = 40.16}`

Explanation:

Cos 17 =
`(adjacent)/(hypotenuse)`

Where adjacent = BC, hypotenuse = 42

0.959 =
`(BC)/(42)`

BC = 0.959 * 42

BC = 40.16