Find the vertex.f(x) = 2x2 - 20x + 47
A. (-3, 5)
B. (-5, 3)
C. (5, -3)
D. (3, -5)
Answer: C
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You are driving with your cruise control set when you encounter a slowly moving truck. You speed up to pass the truck. When you have overtaken the truck, you slow down and resume your previous speed. If 
represents your velocity at time t, make a graph of . Be
sure to label your graph appropriately. What will be an ideal response?
Solve the problem.A person with no more than $1000 to invest plans to place the money in two investments, telecommunications and pharmaceuticals. The telecommunications investment is to be no more than 3 times the pharmaceuticals investment. Write a system of inequalities to describe the situation. Let 
to be invested in telecommunications and 
to be invested in pharmaceuticals.
A. x + y = 1000 x ? 3y x ? 0 y ? 0 B. x + y = 1000 y ? 3x x ? 0 y ? 0 C. x + y ? 1000 x ? 3y x ? 0 y ? 0 D. x + y ? 1000 3x ? y x ? 0 y ? 0
Use the formula for the sum of the first n terms of an arithmetic sequence to find the indicated sum.
A. -20,247 B. -20,475 C. -20,702 D. -20,470
Find a cofunction with the same value as the given expression.csc 13°
A. sec 13° B. sec 77° C. sec 103° D. sin 13°