Tell whether the angles are complementary or supplementary. then find the value of x.

Which sum or difference identity would you use to verify that cos (180° - ∅) = -cos ∅? a. sin (α -β) = sin α cos β – cos α sin β b. cos (α -β) = cos α cos β – sin α sin β c. cos (α -β) = cos α cos β + sin α sin β d. sin (α + β) = sin α cos β + cos α sin β

Answer this question, only if you know the answer. 30 points and brainliest!

Compare the cost of the bike trips from the two companies shown. for both the cost in a linear function of the number of days which statements is true