Graph the polynomial function.f(x) = x4 + 3x2 + 1 
A. 
B. 
C. 
D. 
Answer: D
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Solve the problem.An auxiliary fuel tank for a helicopter is shaped like the surface generated by revolving the curve 
, - 2 ? x ? 2, about the x-axis (dimensions are in feet). How many cubic feet of fuel will the tank hold to the nearest cubic foot?
A. 7 B. 2 C. 8 D. 3
Answer the question based on the following situation:An honest coin is tossed 1600 times. The random variable X denotes the total number of heads that come up in the 1600 tosses.What are the chances that X is between 780 and 840?
A. approximately 95% B. approximately 34% C. approximately 81.5% D. approximately 68% E. none of these
Solve the system by the addition method. If there is no solution or an infinite number of solutions, so state. Use set notation to express the solution set.
A. {(9, 3)} B. {(9, 4)} C. {(8, 4)} D. no solution; ?
Graph the inequality.x ? 2
A. 
B. 
C. 
D. 