Match the graph to one of the polar equations.
A. r = 
B. ? = -
C. r = -
D. ? = 
Answer: B
Mathematics
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The figure shows the velocity v or position s of a body moving along a coordinate line as a function of time t . Use the figure to answer the question. v (ft/sec)
When is the body moving backward?
A. 7 < t < 10 B. 4 < t < 7 C. 0 < t < 4 D. 0 < t < 2, 6 < t < 7
Mathematics
Use the shell method to find the volume of the solid generated by revolving the region bounded by the given curves and lines about the y-axis.y = 
, y = 0, x = 1, x = 9
A. 112? B. 108? C. 52? D. 104?
Mathematics
Evaluate the function.f(x, y) = xy2 + 
; find f
.
A. 2x3 B. 2x4 C. x6 + x3 D. x4 + x3
Mathematics
Find the square root.
A. Not a real number B. 8 C. 4 D. 5
Mathematics