Evaluate the algebraic expression for the given value or values of the variable(s).-9x - 6;
x = -2
A. -24
B. -12
C. 12
D. 24
Answer: C
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Plot the zeros of the given polynomial on the number line together with the zeros of the first derivative.y = (x - 4)(x + 5)2
A. 
B. 
C. 
D. 
Solve the problem.The numbers on the right in the equations below are the hexagonal numbers. Use the sequence of equations to find a formula for hn, the nth hexagonal number. 1 = 1 1 + 5 = 6 1 + 5 + 9 = 15 1 + 5 + 9 + 13 = 28 ..............
A. hn = (n - 1)(2n + 1) B. hn = 2n(n - 1) C. hn = n(2n - 1) D. hn = n(2n + 1)
A delivery truck must deliver packages to five different store locations (A, B, C, D, and E). The trip must start and end at D. The graph below shows the distances (in miles) between locations. We want to minimize the total distance traveled.
The repetitive nearest-neighbor tour starting with vertex D is given by:
A. D, E, A, B, C, D. B. D, A, B, E, C, D. C. D, C, E, A, B, D. D. D, C, A, B, E, D. E. none of these
Graph the polar equation.r = 2 cos ?
A. 
B. 
C. 
D. 