What is the mode of this set of data: 12, 12, 20, 20, 52, 52, 48, 48?
A. 40
B. 12,20,52, and 48
C. 0
D. none
Answer: D
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Find the flux of the vector field F across the surface S in the indicated direction.F(x, y, z) = xyi + yzj + xzk , S is the surface of the rectangular prism formed from the coordinate planes and the planes x = 3, y = 3, and z = 1, direction is outward
A. 
B. 
C. 
D. 63
Solve the problem. Round to the nearest hundredth, if necessary.Assume that the weights of quarters are normally distributed with a mean of 5.67 g and a standard deviation 0.070 g. A vending machine will only accept coins weighing between 5.49 g and 5.82 g. What percentage of legal quarters will be rejected?
A. 1.43% B. 2.13% C. 0.57% D. 1.4%
Solve the system by the elimination method.-5x + 82 = -6y3x + 3y = 3
A. ? B. {(8, -6)} C. {(8, -7)} D. {(7, -6)}
Use the information given about the angle ?, 0 ? ? ? 2?, to find the exact value of the indicated trigonometric function.cos(2?) = 
, 0 < ? < 
Find cos ?.
A. 
B. 
C. 
D. 