Find the derivative.y = 
A. 4x3 cos (x2)
B. sin (x2)
C. cos (x2) - 1
D. cos (x2)
Answer: A
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Solve the problem.The decay of 356 mg of an isotope is given by A(t) = 356e-0.019t, where t is time in years. Find the amount left after 89 years.
A. 33 mg B. 66 mg C. 349 mg D. 64 mg
Solve for a:
2a 2 ÄÄ - Ä = 6 3 3 a. a = 10 b. a = 18 c. a = 20 d. a = 26 e. a = 32
Solve.At one point the exchange equation for converting American dollars into Japanese yen was Y = 129(d - 4) where d is the number of American dollars, Y is the number of yen, and $4 is a one-time bank fee charged for currency conversions. Use this equation to solve the following problem.Ariel is traveling to Japan for 3 weeks and has been advised to have between 19,000 and 30,000 yen for spending money for each week he is there. Write an inequality that represents the number of American dollars he will need to bring to the bank to exchange money for this 3-week period.
A. $441.95 ? d ? $697.77 B. $441.89 ? d ? $697.71 C. $445.86 ? d ? $701.67 D. $453.86 ? d ? $709.67
Give the ordered pairs for the points labeled on the graph.
A. A(6, 2); B(-6, 1) B. A(6, 2); B(1, -6) C. A(2, 28); B(1, -6) D. A(6, 1); B(2, 1)