When 10b= 5(6+2) is solved for c, one equation is c- (20-2)2 Which of the following is an equivalent equation to find c?
C= 100-10-5
C = (105-10-52
(106-22
OC-
25
O
(106-10)
25

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

What additional information could be used to prove abc =mqr using sas? check all that apply.

Solve this 364x-64x=300x and 12(x2–x–1)+13(x2–x–1)=25(x2–x–1)