Find an equation of the line having the given slope and containing the given point. m = 7; (0, -4)
A. y = 7x + 4
B. y = -7x - 2
C. y = 7x + 6
D. y = 7x - 4
Answer: D
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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
Find the absolute value of the complex number. Round your answer to two decimal places, if necessary.
+ 4i
A. 2.14 B. 2.77 C. 16.36 D. 4.04
Solve the problem.You have 84 feet of fencing to enclose a rectangular plot that borders on a river. If you do not fence the side along the river, find the length and width of the plot that will maximize the area.
A. length: 21 ft, width: 21 ft B. length: 63 ft, width: 21 ft C. length: 42 ft, width: 21 ft D. length: 42 ft, width: 42 ft
Solve the problem.The length of a rectangle is 6 inches more than its width. If 3 inches are taken from the length and added to the width, the figure becomes a square with an area of 361 square inches. What are the dimensions of the original figure?
A. Length:19 inches; Width: 19 inches B. Length: 22 inches; Width: 16 inches C. Length: 19 inches; Width: 13 inches D. Length: 19 inches; Width: 16 inches