Solve the problem.The volume of a cylinder varies jointly as the square of the radius and the height. If the volume is 28? cubic inches when the radius is 2 inches and the height is 7 inches, find the volume when the radius is 7 inches and the height is 14 inches. Express the answer in terms of ?.
A. 686 ? cubic inches
B. 691 ? cubic inches
C. 2744 ? cubic inches
D. 679 ? cubic inches
Answer: A
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Perform the indicated operations.(7m + 4)2
A. 49m2 + 56m + 16 B. 49m2 + 16 C. 7m2 + 16 D. 7m2 + 56m + 16
Use the quadratic function to determine if the function has a maximum or minimum value and then find this maximum or minimum value.f(x) = -3x2 + 36x - 102
A. maximum: (6, 6) B. minimum at (0, -6) C. maximum at (-6, -6) D. minimum at (-6, 0)
Use technology to calculate det A.A = 
A. -38 B. -23 C. -340 D. -29
Use the information provided in the first statement to complete the second statement with one of the symbols <, ?, >, or ?.Seventy-seven percent of Americans own at least one automobile.Seventy-seven percent of Americans own 
one automobile.
A. ? B. < C. ? D. >