Perform the indicated matrix operations.Let A = 
. Find 2A.
A.
B.
C.
D.
Answer: A
Mathematics
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Solve the problem.Find the volume of the region bounded by the coordinate planes, the parabolic cylinder 
, and the plane 
.
A. 432 B. 162 C. 144 D. 324
Mathematics
Find the flux of the curl of field F through the shell S.F = (8 - y)i + (6 + x)j + z4k; S is the upper hemisphere of x2 + y2 + z2 = 81
A. -4? B. 324? C. 2? D. 162?
Mathematics
Solve the problem.Suppose that the total-cost function for a certain company to produce x units of a product is given by 
Graph the average cost function A(x) = C(x)/x.
A. 
B. 
C. 
D. 
Mathematics
Find all solutions of the equation in the interval [0°, 360°). Round the answers to the nearest tenth of a degree.tan (? + 60°) = 5
A. 18.7°, 221.3° B. 18.7° C. 18.7°, 198.7° D. 18.7°, 41.3°
Mathematics