Find the flux of the curl of field F through the shell S.F = (4y + 1)i - 2xj + (ez - 4)k; S: r(r, ?) = 2 sin ? cos ?i + 2 sin ? sin ?j + 2 cos ?k, 0 ? ? ? 2? and 0 ? ? ? 
A. -24?
B. 48
C. -48?
D. 24?
Answer: A
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Find the sum of the series.
A. 
B. 1
C. 6
D. 
Solve the problem.The weekly sales in thousands of items of a product has a seasonal sales record approximated by 
, where x is the time in weeks with x = 1 referring to the first week in the year. During which week(s) will the sales equal 79,130 items?
A. Week 30 and week 47 B. Week 4 and week 47 C. Week 21 and week 30 D. Week 4, week 20, and week 52
Find parametric equations for the line described below.The line through the point P(7, 2, -1) parallel to the vector 
A. x = -4t - 7, y = 5t - 2, z = -4t + 1 B. x = 4t + 7, y = -5t + 2, z = -4t - 1 C. x = 4t - 7, y = -5t - 2, z = -4t + 1 D. x = -4t+ 7, y = -5t + 2, z = 4t - 1
Determine the number and type of solutions.2x2 + 3x + 4 = 0
A. 2 real solutions B. 1 real solution C. 2 imaginary solutions