Determine whether the function is one-to-one.
A. yes
B. no
Answer: B
Mathematics
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Find the volume.Find the volume of the solid generated by revolving the region under the curve 
in the first quadrant about the y-axis.
A. 4? B. 1? C. 2? D. 2?3
Mathematics
Use the graph to find a ? > 0 such that for all x, 0 < 
< ? ? 
< ?.
A. 0.1 B. 9 C. -0.1 D. 0.2
Mathematics
Find the volume.Find the volume of the solid generated by revolving the area under y = 5e-x in the first quadrant about the y-axis.
A. 10? B. 20? C. 5? D. 1
Mathematics
Solve the problem. Use 3.14 for ? and round to the nearest tenth.The discus is thrown from a circular region 8 feet 2 inches in diameter. What is the area of the circle (in square inches)?
A. 7539.1 in2 B. 3769.6 in2 C. 307.7 in2 D. 30,156.6 in2
Mathematics