Use a graphing calculator to find the matrix product and/or sum.Find AB.A = 
B = 
A. 
B. 
C. 
D. Does not exist
Answer: B
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Solve the problems.A cheetah can run at a speed of approximately 69 miles per hour. Calculate this speed in feet per second. Round to the nearest whole number.
A. 112 ft./sec. B. 101 ft./sec. C. 138 ft./sec. D. 93 ft./sec.
Answer the question.For f(x) = 4x2 + 9x and g(x) = 5x3, what is the domain of g?f?
A. 
B. 
C. All real numbers
D. 
Find the expected value.A fair coin is tossed three times, and a player wins $3 if 3 tails occur, wins $2 if 2 tails occur and loses $3 if no tails occur. If one tail occurs, no one wins. What is the expected value of the games?
A. $0.75 B. $2.00 C. -$3.00 D. $3.00
Solve the system by the substitution method.
A. {(-2, 5), (-3, 6)} B. {(2, 5), (3, 0)} C. {(2, 1), (3, 0)} D. {(3, 0)}