Find the derivative.y = 15x - 1
A. 15x - 1 ln x
B. 15x - 1 ln 15
C. 15x - 1 ln 15x - 1
D. 15 ln 15
Answer: B
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Identify a, b, c, with a > 0, for the quadratic equation.3x(2x2 - 3x + 3) = 6 + 2x
A. a = 6, b = -7, c = 3 B. a = 2, b = -3, c = 3 C. a = 6, b = -9, c = 9 D. Not quadratic
Translate to a proportion and solve. When necessary, round to the nearest hundredth.54 is 120% of what?
A. 450 B. 14,400 C. 144 D. 45
Change the percent to a decimal.410%
A. 0.41 B. 4.1 C. 41 D. 4.11
Solve the problem.When a person takes a drug, the body does not assimilate all of the drug. One way to determine the amount of the drug assimilated is to measure the rate at which the drug is eliminated from the body. If the rate of elimination of the drug (in milliliters per minute) is given by R(t) = 4e-0.2t - 4e-0.4t where t is the time in minutes since the drug was administered, how much of the drug is eliminated from the body?
A. 10 mL B. 2.5 mL C. 25 mL D. 100 mL