Question

Need help again ?!???

Answer 1

Answer:

11.47

Step-by-step explanation:

Use SohCahToa. In this problem, you are given the hypotenuse and you are trying to solve for the adjacent side so it will be cosine. (cosine = $\frac{adjacent}{hypotenuse}$)

1. set up the equation

cos55 = $\frac{x}{20}$

2. Multiply both sides by 20 to solve for x

20 · cos55 = 11.47

Answer 2

Answer:

11.47

Solution,

From the figure,

$cos \: 55 = \frac{PQ}{PR}$

$cos \: 55 = \frac{PQ}{20}$

$PQ = 20 \: cos \: 55$

$PQ= 11.472$

$PQ= 11 .47$

Hope this helps...

Good luck on your assignment...