Why is it important to have complex carbohydrates before a big race? (again, not math. i know, its to get the answer

Suppose a triangle has two sides of length 32 and 35, and that the angle between these two sides is 120°. which equation should you solve to find the length of the third side of the triangle?

What is the value of x? enter your answer in the box. photo attached.

Empty box + box + empty box fill in the box is equal to 30 how