Question

IM SO DESPERATE !!!!!!!!!

Answer 1

3) sin B = 5/√89

cos B = 5/√89

tan B = 5/8

4) Set your calculator to degree mode.

cos A = 47/61

A = 40°

5) Set your calculator to degree mode.

tan(28°) = 21/x

x•tan(28°) = 21

x = 21/tan(28°) = 39.5 mm