Michael has 347 coins in his coin collection. He is going to keep 59 coins for himself. Then he will divide the rest of the collection to his 3 siblings for a special gift.

Which sum or difference identity would you use to verify that cos (180° - q) = -cos q? a.) sin (a -b) = sin a cos b – cos a sin b b.) cos (a -b) = cos a cos b – sin a sin b c.) cos (a -b) = cos a cosb + sin a sin b d.) sin (a + b) = sin a cos b + cos a sin b

What is the solution to the system of equations? y=1.5-3 y=-x

Find the area of the shaded region.