Match each set of equations with the move that turned the first equation into the second.
6x + 9 = 4x - 3
2x + 9 = -3

select one:
multiply both sides by -1/4
multiply both sides by -4
multiply both sides by 1/4
add -4x to both sides
add -4 to both sides

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

Plz.yesterday, the snow was 2 feet deep in front of archie’s house. today, the snow depth dropped to 1.6 feet because the day is so warm. what is the percent change in the depth of the snow?

What is the ordered pair of m’ after point m (5, 6) is rotated 90° counterclockwise?