Decide whether the matrices are inverses of each other. (Check to see if their product is the identity matrix I.)
and 
A. Yes
B. No
Answer: A
Mathematics
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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 = 8 - x2, y = x2, x = 0
A. 8? B. 32? C. 4? D. 16?
Mathematics
Solve the equation. Use the change of base formula to approximate an exact answer to the nearest hundredth when appropriate.ex = 156
A. x = log3156 B. x = 156e C. x = ln 156 D. x = log 156
Mathematics
Between the pair of numbers, insert the appropriate sign: <, =, or >.9
9
A. > B. = C. <
Mathematics
Find the center (h, k) and radius r of the circle with the given equation. x2 + 14x + 49 + (y - 2)2 = 4
A. (h, k) = (2, -7); r = 2 B. (h, k) = (-7, 2); r = 2 C. (h, k) = (-2, 7); r = 4 D. (h, k) = (7, -2); r = 4
Mathematics