Solve the equation.a + 4 = 7
A. -3
B. -11
C. 3
D. 11
Answer: C
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Find the flux of the vector field F across the surface S in the indicated direction.F = 
k ; S is the upper hemisphere of x2 + y2 + z2 = 25; direction is outward
A. - 10? B. - 10 C. 10 D. 10?
Factor the difference of two squares completely.a2 - (b + 4)2
A. (a - b + 4)(a - b - 4) B. (a + b + 4)(a - b + 4) C. (a + b + 4)(a - b - 4) D. Prime
Factor completely. If the polynomial cannot be factored, say it is prime.x4 + 2x2 - 35
A. (x2 + 5)(x2 + 1) B. (x2 - 5)(x2 + 7) C. (x2 + 5)(x2 + 7) D. Prime
Solve the problem.The function f(x) = 60x computes the number of minutes in x hours. The function g(x) = 24x computes the number of hours in x days. What is (f ? g)(x) and what does it compute?
A. (f ? g)(x) = 1440x; It computes the number of days in x minutes. B. (f ? g)(x) = 84x; It computes the number of minutes plus the number of days in x days. C. (f ? g)(x) = 1440x2; It computes the number of minutes in x days. D. (f ? g)(x) = 1440x; It computes the number of minutes in x days.