Use a graph to find an approximate solution to the equation. Round to the nearest thousandth.2x = 25
A. 0.215
B. 12.500
C. 4.644
D. 2.526
Answer: C
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Using the Divergence Theorem, find the outward flux of F across the boundary of the region D.F = 2xy2i + 2x2yj + 8xyk ; D: the region cut from the solid cylinder x2 + y2 ? 4 by the planes z = 0 and 
A. 256? B. 128? C. 512? D. 64?
Locate the fraction on the number line.
A. 
B. 
C. 
D. 
Solve.The time T necessary to make an enlargement of a photo negative varies directly as the area A of the enlargement. If 80 seconds are required to make a 5-by-4 enlargement, find the time required for a 6-by-5 enlargement.
A. 120 sec B. 90 sec C. 150 sec D. 180 sec
Solve the problem.In a sale, the price of a computer is reduced by $270. The sale price is $990. Find the marked price (original price) and the rate of discount. Round the discount rate to the nearest tenth of a percent if necessary.
A. $1260; 21.4% B. $720; 37.5% C. $1260; 27.3% D. $720; 27.3%