Multiply and simplify. Assume variables do not cause any denominators to equal 0.
? 
A. 
B. 40
C. 
D. 
Answer: D
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Solve the problem.Consider the region R bounded by the graph of f(x) = 
on the interval [0, 1]. Find the volume of the solid formed when R is revolved about the y-axis.
A. ?
B. ?
C. 2?
D. 2?
Evaluate.log 
A. 2 B. 3 C. -3 D. -2
Express the interval in set builder notation and graph the interval on a number line.[-7, 3)
A. {x 
}
B. {x 
}
C. {x 
}
D. {x 
}
Solve the problem.A plane flying a straight course observes a mountain at a bearing of 31.7° to the right of its course. At that time the plane is 8 kilometers from the mountain. A short time later, the bearing to the mountain becomes 41.7°. Find the distance between the plane and the mountain, to the nearest tenth of a kilometer, when the second bearing was taken.
A. 6.3 km B. 11.4 km C. 4.2 km D. 10.1 km