Find the derivative of the function.f(t) = (6 - t)(6 + t3)-1
A. f '(t) = 
B. f '(t) = 
C. f '(t) = 
D. f '(t) = 
Answer: D
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Determine what m and b represent.The cost, in dollars, of retaining the services of a computer repairman in Anchorville is given by 
where x is the number of hours worked.
A. 18 signifies the hourly rate, and 51 signifies the overhead charge. B. -51 signifies the hourly rate, and 18 signifies the travel cost. C. 69 signifies the cost for an on-site inspection. D. 51 signifies the hourly rate, and 18 signifies the overhead charge.
Find possible value(s) of ? in the interval [0°, 360°) with the given trigonometric function value.sin ? = - 
A. 210°; 330° B. 150°; 210° C. 60°; 120° D. 60°; 300°
Factor completely. If the polynomial is prime, say so.-3x2 + 30x - 75
A. Prime B. 3(x + 5)2 C. -3(x - 5)2 D. 3(x - 5)2
Solve the problem.The purchase price of a telephone is $337. If the sales tax rate is 2%, what is the overall price of the phone? Round your answer to the nearest cent.
A. $404.40 B. $340.37 C. $343.74 D. $347.11