Find the depreciation in the first partial year. Round to the nearest dollar.Cost: $8230Salvage: $630Life: 5 yearsMethod: Straight-lineAcquired: June 1
A. $1646
B. $960
C. $1520
D. $887
Answer: D
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Solve the problem.A ramp L ft long has an incline of ?. The work W needed to move an object weighing P lb up the ramp is given by W = PL(sin ?). To the nearest unit, find the work needed to move a trunk when: 
A. 792 ft-lb B. 959 ft-lb C. 871 ft-lb D. 3840 ft-lb
Solve the problem by using two equations with two variables.Dmitri needs 6 liters of a 20% solution of sulfuric acid for a research project in molecular biology. He has two supplies of sulfuric acid solution: one is an unlimited supply of the 48% solution and the other an unlimited supply of the 6% solution. How many liters of each solution should Dmitri use?
A. 48% solution: 2.5 liters; 6% solution: 3.5 liters B. 48% solution: 1.5 liters; 6% solution: 4.5 liters C. 48% solution: 2 liters; 6% solution: 4 liters D. 48% solution: 4 liters; 6% solution: 2 liters
Write in exponential form.(-3)(-3)(-3)(-3)(-3)(-3)(-3)(-3)(-3)(-3)
A. (-3)10 B. -3 ? 10 C. 10-3 D. -310
Solve the problem.Trees improve air quality in part by retaining airborne particles, called particulates, from the air. The following table shows the number of metric tons of particulates retained by trees during several months:
Using the data from May, June, and August, find a quadratic function that could be used to predict the number of metric tons of particulates retained by trees x months after May.
A. f(x) = 120x2 + 86x + 234 B. f(x) = - 22x2 + 86x + 234 C. f(x) = - 22x2 + 808x + 234 D. f(x) = 86x2 - 22x + 234