Find the exact value using a sum or difference identity: cos (-300°)
Hint: sin(A + B) = sin A cos
B = cos A sin B
cos(A + B) = cos A cos B = sin A sin B

To show that polygon abcde is congruent to polygon fghij, a must be used to make the two polygons coincide. a sequence of two transformations that can be used to show that polygon abcde is congruent to polygon fghij is .

Which interval for the graphed function contains the local maximum? [–3, –2] [–2, 0] [0, 2] [2, 4]

Secant ac and bd intersect at point e inside f what is the measure of aed if measurements cd equals 30 a b is 50 and cb is 170