Find the range of each measurement 50 m + 4%

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

Complete the solution of the equation. find the value of y when x equals to 6 4x+y=20

Aubrey read 29 books and eli read 52 books what number is equal to the number of books aubrey read?