Write the binomial expansion of the expression.(2x2 + 1)3
A. 8x3 + 12x2 + 6x + 1
B. 8x6 + 12x4 + 6x2 + 1
C. (4x4 + 4x2 + 1)3
D. 16x8 + 8x6 + 12x4 + 6x2 + 1
Answer: B
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Solve the problem. Round to the nearest dollar.A construction company purchased a piece of equipment for $1780. The expected life is 8000 hours, after which it will have a salvage value of $340. Find the amount of depreciation for the first year if the piece of equipment was used for 1700 hours. Use the units-of-production method of depreciation.
A. $306 B. $221 C. $378 D. $179
Compute the following. Round to the nearest hundredth.2000% of 466
A. 932,000 B. 932 C. 93,200 D. 9320
Solve the problem.Maria and Charlie can deliver 60 papers in 3 hours. How long would it take them to deliver 26 papers?
A. 1.3 hr B. 1.7 hr C. 6.9 hr D. 78 hr
Write the system of linear equations represented by the augmented matrix. Use x, y, z, and, if necessary, w for the variables. Then use back-substitution to find the solution.
A. {(4, -4, -7)} B. {(250, 38, -7)} C. {(178, -46, -7)} D. {(6, 1, -8)}