Use the change-of-base formula and a calculator to evaluate each logarithm.log
157.4
A. 2.4328
B. 0.4515
C. 0.2055
D. 4.8655
Answer: D
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Use a calculator to solve the equation on the interval 0 ? ? < 2?. Round the answer to two decimal places.csc ? = -4
A. -1.82, 8.11 B. 6.03, 3.39 C. -1.82, 1.32 D. 0.25, 3.39
Find the expected value.A fair coin is tossed three times, and a player wins $3 if 3 tails occur, wins $2 if 2 tails occur and loses $3 if no tails occur. If one tail occurs, no one wins. What is the expected value of the games?
A. $0.75 B. $2.00 C. -$3.00 D. $3.00
Find the expected value.A car agency has found daily demand to be as shown in the table.
Find the expected number of customers.
A. 9 B. 12 C. 10 D. 2
Solve the problem.Suppose that during a certain step in a chemical manufacturing process the amount of chlorine dissolved in a solution, measured in parts per million (ppm), is related to the elapsed time measured from the beginning of the step. Use the following table as a representation of this relationship. What does the ordered pair (6, 28.4) mean in the context of this situation?
A. (6, 28.4) indicates that 6 ppm of chlorine was dissolved after 28.4 minutes elapsed. B. (6, 28.4) indicates that 28.4 ppm of chlorine was dissolved after 10 minutes elapsed. C. (6, 28.4) indicates that 28.4 ppm of chlorine was dissolved after 6 seconds elapsed. D. (6, 28.4) indicates that 28.4 ppm of chlorine was dissolved after 6 minutes elapsed.