Question

Find the value of x. Round the length to the nearest tenth.

Answer 1

Answer:

7.2 ft

Step-by-step explanation:

Use cosine

$cosine=\dfrac{adjacent}{hypotenuse}$

We have

$adjacent=x\\hypotenuse=10ft\\\alpha=44^o\to\cos44^o\approx0.7193$

Substitute:

$0.7193=\dfrac{x}{10}$             multiply both sides by 10

$x=7.193\to x\approx7.2\ ft$

Answer 2

cos44° = x/10

x = 10cos44° = 7.2ft