Rationalize the denominator.
A. 
B. 
C. 
D. 
Answer: B
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Solve the problem.The resistance R produced by wiring resistors of R1, R2, and R3 ohms in parallel can be calculated from the formula 
If R1, R2, and R3 are measured to be 6 ohms, 5 ohms, and 8 ohms respectively, and if these measurements are accurate to within 0.05 ohms, estimate the maximum percentage error in computing R.
A. 0.51% B. 0.68% C. 0.85% D. 1.02%
Solve the problem. Round to the nearest dollar.A construction company purchased a piece of equipment for $1,610. The expected life is 9,000 hours, after which it will have a salvage value of $290. Find the amount of depreciation for the first year if the piece of equipment was used for 1,700 hours. Use the units-of-production method of depreciation.
A. $177 B. $149 C. $255 D. $304
Perform the matrix operation.Let A = 
and B = 
. Find 3A + 4B.
A. 
B. 
C. 
D. 
Perform the indicated operation.
A. 2 B. -18 C. -2 D. 18