Factor the polynomial.x2 - x - 72
A. (x + 9)(x - 8)
B. (x + 1)(x - 72)
C. (x + 8)(x - 9)
D. prime
Answer: C
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Solve the problem.Suppose that the amount of oil pumped from a well decreases at the continuous rate of 
per year. When, to the nearest year, will the well's output fall to one-eighth of its present value?
A. 15 years B. 23 years C. 2 years D. 35 years
Let p represent a true statement and let q represent a false statement. Find the truth value of the given compound statement.~(p ? ~q)
A. True B. False
Write the conjugate 
of the complex number z. Then find z
.z = 5 + 6i
A. 
= 5 - 6i, z
= -11
B. 
= 5 - 6i, z
= 25 - 36i
C. 
= 5 - 6i, z
= 61
D. 
= 5 - 6i, z
= 25 - 36i2
Use point plotting to graph the plane curve described by the given parametric equations.x = t3 + 1, y = t3 - 1; -2 ? t ? 2
A. 
B. 
C. 
D. 