Find the derivative of y with respect to x, t, or ?, as appropriate.y = ln 6x
A. 
B. - 
C. 
D. - 
Answer: C
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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
Express the number in standard notation.5.28 × 10-4
A. -528,000 B. 0.0000528 C. 0.00528 D. 0.000528
Solve the problem.In a certain fraction, the numerator is 3 less than the denominator. If 2 is added to both the numerator and the denominator, the resulting fraction is equal to 
. What was the original fraction (not necessarily written in lowest terms)?.
A. 
B. 
C. 
D. 
Eleni, who is now 55 years old, is employed by a firm that guarantees her a pension of $90,000/year at age 70. What is the present value of her first year's pension if inflation over the next 15 year(s) is at the given rate. Assume that inflation is continuously compounded. Round your answer to the nearest cent. ? 6% _________ ? 9% _________ ? 18% _________ ?
A. $64,219.68, $71,866.46, $6,048.50 B. $36,591.27, $23,331.62, $6,048.50 C. $57,386.53, $64,219.68, $6,048.50 D. $57,386.53, $64,219.68, $71,866.46