Perform the matrix multiplication.
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Solve the problem.The base of a rectangular tank measures 10 ft by 20 ft. The tank is 17 ft tall, and its top is 10 ft below ground level. The tank is full of water weighing 62.4 lb/ft3. How much work does it take to empty the tank by pumping the water to ground level? Give your answer to the nearest ft ? lb.
A. 7,531,680 ft ? lb B. 3,924,960 ft ? lb C. 1,803,360 ft ? lb D. 1,803,530 ft ? lb
Mathematics
Express the integrand as a sum of partial fractions and evaluate the integral.
A. - 
B. - 
C. 
D. - 
Mathematics
Evaluate the expression for the given replacement values.x + z for x = 8.3, z = 0.72
A. 7.58 B. 15.5 C. 9.02 D. 18.04
Mathematics
Find the dot product v ? w.v = 2i + 3j + k and w = 2i + 8j + 2k
A. -18 B. -30 C. 89 D. 30
Mathematics