Find the integral.
dx
A. ln |4x2 + 2x - 1| + C
B. (8x + 2) ln 
+ C
C. (8x + 2) ln |4x2 + 2x - 1| + C
D. ln 
+ C
Answer: A
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Suppose you have the following project digraph. (The numbers in parentheses represent hours.)
The number of tasks in the project is
A. 8. B. 9. C. 10. D. 7. E. none of these
Estimate the sum or difference by rounding each number to the nearest hundred.
A. 350 B. 300 C. 400 D. 1500
Write the following phrase as an algebraic expression and simplify if possible. Let x represent the unknown number.One-half a number, minus eight, plus two times the number
A. 
x - 4
B. 
x - 8
C. 
x - 6
D. 
x - 8 + 2x
Write the number in the sentence in digits.Don figured out that he had lived three billion, three hundred fifty-five million seconds.
A. 3,355,000,000,000 B. 3,000,355,000 C. 3,355,000 D. 3,355,000,000