X^3+3x^5=x5 what's the missing expression

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

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

Use the data on the dot plot to answer the question. how many people read for more than three hours last week? i'm on a unit test review