Evaluate the expression.
A. 11
B. Not a real number
C. 60
D. 12
Answer: A
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Solve the problem.The sum of a student's three scores is 203. If the first is 13 points more than the second, and the sum of the first two is 17 more than twice the third, what was the first score?
A. 64 B. 77 C. 62 D. 49
Describe the given set of points with a single equation or with a pair of equations.The circle in which the plane through the point (-1, 12, 4) perpendicular to the y-axis meets the sphere of radius 15 centered at the origin.
A. x 2 + y2 + z2 = 225 and y = 12 B. x 2 + y2 + z2 = 81 and y = 12 C. x 2 + y2 + z2 = 63 and y = 12 D. x 2 + y2 + z2 = 144 and y = 12
Find the potential function f for the field F.F = 10x9y7z4i + 7x10y6z4j + 4x10y7z3k
A. f(x, y, z) = x30y21z12 + C
B. f(x, y, z) = 
C. f(x, y, z) = x10y7z4 + 7x10y6z4 + 4x10y7z3 + C
D. f(x, y, z) = x10y7z4 + C
Find the slope of the line through the pair of points.(2, 5) and (-7, 5)
A. 4 B. 0 C. 13 D. 1