Solve the equation.(x + 2)(x + 5) = 0
A. {2, 5}
B. {-2, 5}
C. {-2, -5}
D. {2, -5}
Answer: C
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Solve the problem.A machine can fill 702 cartons of milk in 0.1 hour. How many cartons of milk can it fill per hour?
A. 3510 cartons/hour B. 7020 cartons/hour C. 702 cartons/hour D. 70 cartons/hour
Use the intermediate value theorem to approximate the one real zero on the given interval. Round your answer to two decimal places.f(x) = x3 - 8x - 3; [-1, 0]
A. -2.62 B. 2.62 C. -0.38 D. 0.38
Solve the problem.At Allied Electronics, production has begun on the X-15 Computer Chip. The total revenue function is given by 
and the total profit function is given by 
, where x represents the number of boxes of computer chips produced. The total cost function, C(x), is such that 
Find C(x).
A. C(x) = -0.3x2 + 10x + 16 B. C(x) = 6x + 21 C. C(x) = 7x + 12 D. C(x) = 5x + 16
Suppose n(U) = 200, n(A) = 80, n(B) = 65, n(C) = 90, n(A ? B) = 48, n(A ? C) = 62, n(B ? C) = 45, and n(A' ? B' ? C') = 80.Find n(A ? B ? C).
A. 120 B. 345 C. 80 D. impossible to determine