Given the matrices A and B, find the matrix product AB.A = 
, B = 
Find AB.
A. 
B. AB is not defined.
C. 
D. 
Answer: A
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Evaluate the iterated integral.
A. - 192 B. - 288 C. 192 D. 480
Identify a method whereby a random sample can be selected from the population.An investment club wants to randomly select 10 of its members to receive product samples sent by companies whose stock the club owns.
A. Have each member write his or her name on a piece of their own paper and fold it themselves. Put the pieces of paper into a box, mix thoroughly, and ask one of the members to look into the box and choose 10 pieces of paper. B. Choose every 5th member to arrive at the next meeting until 10 members have been selected. C. Write the name of each member on a slip of paper. Make sure all slips of paper are the same size and shape. Fold the papers in exactly the same way, put them in a box and mix thoroughly. Without looking, select 10 slips from the box.
Determine algebraically whether the function is even, odd, or neither.f(x) = 
A. even B. odd C. neither
Solve the problem. Use 3.14 as the approximate value of ? unless otherwise instructed. Round to the nearest tenth unless otherwise indicated.The foundation for a cylindrical flower bed is a cylinder 21 m in diameter and 3 m high. How many cubic m of concrete are needed to build the foundation?
A. 4154.2 m3 B. 2077.1 m3 C. 395.6 m3 D. 1038.6 m3