Question

Find x. Round your answer to the nearest tenth of a degree. 15 x 10

Answer 1

Answer:

x is approximately 48.2.

Step-by-step explanation:

Use the trig function of cosine, or adjacent over hypotenuse.

cos theta = adjacent / hypotenuse

Substitute variables.

cos x = 10 / 15

Apply inverse cosine to both sides.

x = cos^-1(10/15)

Evaluate.

x ≈ 48.2

Answer 2

Answer:

x ≈ 48.2°

Step-by-step explanation:

Using the cosine ratio in the right triangle

cos x = $\frac{adjacent}{hypotenuse}$ = $\frac{10}{15}$ , then

x = $cos^{-1}$ ($\frac{10}{15}$ ) ≈ 48.2° ( to the nearest tenth )