Solve the problem.Find the approximate number of batches (to the nearest whole number) of an item that should be produced annually if 280,000 units are to be made. It costs 
to store a unit for one year, and it costs 
to set up the factory to produce each batch.
A. 18 batches
B. 27 batches
C. 25 batches
D. 20 batches
Answer: C
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Compute the gradient of the function at the given point.
A. ?f = - 
i + 
j
B. ?f = - 
i + 
j
C. ?f = - 
i - 
j
D. ?f = - 
i - 
j
Use scientific notation to solve the problem.Assume that the volume of the earth is 5 x 1014 cubic meters and the volume of a bacterium is 2.5 x 10-16 cubic meters. If the earth could be filled with bacteria, how many would it contain?
A. 5.0 x 1031 bacteria B. 2.0 x 10-30 bacteria C. 2.0 x 1030 bacteria D. 5.0 x 10-31 bacteria
Provide an appropriate response. Solve the equation with a squared term: 4x2 - 7 = 137
A. x = ±3 B. x = ±6 C. x = 3 D. x = 6
Convert the polar equation to a rectangular equation.r = 5 cos ? + 2 sin ?
A. x2 - y2 = 5x + 2y B. x2 + y2 = 2x + 5y C. 5x + 2y = 0 D. x2 + y2 = 5x + 2y