Does anyone know this? (i'll give brainliest if i get .)

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

Which shows the first equation written in slope-intercept form? 1/2 (2y + 10) = 7x

Drag each equation to the correct location on the table. for each equation, determine the number of solutions and place on the appropriate field in the table.