Simplify using the product rule.(2a2)(3a3)
A. 55
B. 56
C. 6a6
D. 6a5
Answer: D
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Describe the graph of the polar equation.r2 = 50r cos ?
A. Circle of radius 25 and center (25, 0) B. Vertical line passing through (50, 0) C. Circle of radius 25 and center (0, 25) D. Horizontal line passing through (0, 50)
Find the average value of the function over the given interval.y = 2 - x2; [-2, 5]
A. - 
B. - 
C. - 
D. - 
Find the average value of the function f over the given region.f(x, y) = 9x + 10y over the region bounded by the coordinate axes and the lines 
and 
.
A. 
B. 
C. 
D. 
Solve the problem.The table lists the average composite scores on a national entrance exam for selected years.
(i) Make a line graph of the data.(ii) If the graph represents a piecewise-linear function f, find a symbolic representation for the piece of f located on the interval 
A. 
f(x) = 0.75x - 1356.5 if 1982 ? x ? 1986
B. 
f(x) = 4.4x - 8598.1 if 1986 ? x ? 1988
C. 
f(x) = 122.7 if 1986 ? x ? 1988
D. 
f(x) = 131.5 if 1982 ? x ? 1984