Answer:
Step-by-step explanation:
12 divide 5
Answer:3y+4
Step-by-step explanation:3(y-1) +7
3y-3+7
=3y+4
E. 1/2
Divide by 2, then make use of the Pythagorean identity for sine and cosine.
sin(x)^2 +cos(x)^2 = 2a
1 = 2a . . . . . . . sin²+cos²=1
1/2 = a