Solve the system of equations using Cramer's Rule if it is applicable. If Cramer's Rule is not applicable, say so.
A. x = , y = -
;
B. x = - , y = -
;
C. x = , y =
;
D. not applicable
Answer: A
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Find the square root.-
A. 13 B. -13 C. -84 D. Not a real number
Solve the problem. Round unit depreciation to nearest cent when making the schedule, and round final results to the nearest cent. A construction company purchased a piece of equipment for $1710. The expected life is 7000 hours, after which it will have a salvage value of $280. Find the amount of depreciation for the first year if the piece of equipment was used for 1600 hours. Use the units-of-production method of depreciation.
A. $320.00 B. $186.67 C. $228.00 D. $390.86
Describe the transformations and give the equation for the graph.
A. It is the graph of f(x) = translated 3 units to the right, reflected across the x-axis and translated 2 units down. The equation is y =
- 2
B. It is the graph of f(x) = translated 3 units to the right, reflected across the x-axis and translated 2 units down. The equation is y = -
- 2
C. It is the graph of f(x) = translated 3 units to the right, reflected across the y-axis and translated 2 units down. The equation is y =
- 2
D. It is the graph of f(x) = translated 3 units to the right, reflected across the x-axis and translated 2 units down. The equation is y = -
- 2
Candy and Tim share a paper route. It takes Candy 33 minutes to deliver all the papers, whereas Tim takes 66 minutes. How long does it take them when they work together? Round your answer to the nearest tenth, if necessary. ?
A. 33 minutes B. 16.5 minutes C. 49.5 minutes D. 22 minutes E. none of these