Question

Pls help! Step by step

Answer 1

Explanation:

SOHCAHTOA

CAH-

Cosine●= adj/hyp

cos30= y/8

0.8660=y/8

Cross multiply

0.8660×8=y

y=8×0.8660

y=6.928

Answer 2

x = 4
`√(3)`

Explanation:

using the cosine ratio in the right triangle and the exact value

cos30° =
`(√(3) )/(2)` , then

cos30° =
`(adjacent)/(hypotenuse)` =
`(x)/(8)` =
`(√(3) )/(2)` ( cross- multiply )

2x = 8
`√(3)` ( divide both sides by 2 )

x = 4
`√(3)` ( exact value )