Write an equation for the parabola with vertex at the origin.Through (-9, 9), opening to the left
A. x = 
y2
B. x = -9y2
C. y2 = -9x
D. x2 = 9y
Answer: C
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Solve the problem.Express cos(A + B + C) in terms of sin A, sin B, sin C, cos A, cos B, and cos C.
A. sin A cos B cos C + sin B cos A cos C + sin C cos A cos B - sin A sin B sin C B. cos A cos B cos C - sin A sin B cos C - sin A sin C cos B - sin B sin C cos A C. sin A cos B cos C + sin B cos A cos C + sin C cos A cos B + sin A sin B sin C D. sin A cos B cos C + sin B cos A cos C - sin C cos A cos B + sin A sin B sin C
Provide an appropriate response.When a manufacturer offers a product for sale to a retailer, the amount deducted from the list price is called the:
A. percent B. complement C. trade discount D. net price
Perform the indicated operations.-3 - (8 + 15) + 4
A. 0 B. -22 C. -30 D. 8
Divide.
A. 2x5 + 10x2 + 5x B. 2x4 + 10x + 5 C. 2x5 + 30x2 + 15x D. 6x4 + 30x + 15