Which equation can be used to solve for c?
c = (5)cos(35°)
c = 5/cos(35°)
c = (5)sin(35°)
c = 5/sin(35°) 

Solution:

The ratio of the adjacent side of a right triangle to the hypotenuse is called the cosine.

From the triangle, we know that

cosθ = adjacent/Hypotenuse

Substituting the values

cos 35° = 5/c

So we get

c = 5/cos35°

Therefore, the equation c = 5/cos35° can be used to solve for c.

Which equation can be used to solve for c?

Summary:

The equation 5/cos35° can be used to solve for c.