Question

PLEASE HELP ASAP!!! I NEED CORRECT ANSWERS ONLY PLEASE!!! I NEED TO FINISH THESE QUESTIONS BEFORE MIDNIGHT TONIGHT.

Answer 1

B is 90° and c is 59°
Add those and you get 149. Subtract 180 from 149 and get 31. D is 31, c is 59, so cd is 90.

Answer 2

Answer:

Step-by-step explanation:

This is classic right triangle trig.  We have the reference angle of 59 degrees, we have the side adjacent to that angle of 4 units, and we are looking for CD which is the hypotenuse of the triangle.  That is the cosine ratio:

$cos\theta=\frac{adj}{hyp}$

Filling in:

$cos(59)=\frac{4}{hyp}$

Doing some algebraic acrobats there to solve for the hypotenuse gives you:

$hyp=\frac{4}{cos(59)}$

Use your calculator to solve this in degree mode:

hyp = 7.8 units