Evaluate.Given that log x = 5 and log y = 4, find log xy4.
A. 1280
B. 21
C. 80
D. 36
Answer: B
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Perform the indicated operation without the use of a calculator and express each answer in decimal notation.
A. 60,000 B. 0.06 C. 0.00001667 D. 0.0006
Solve the problem.A college loan of $25,000 is made at 4% interest, compounded annually. After t years, the amount due, A, is given by the function A(t) = 25,000(1.04)t .After what amount of time will the amount reach $37,000? Round your answer to the nearest tenth.
A. 0.4 yr B. 10.0 yr C. 0.1 yr D. 68.7 yr
Use the simplex method to solve the linear programming problem.Alan wants to invest a total of $21,000 in mutual funds and a certificate of deposit (CD). He wants to invest no more in mutual funds than half the amount he invests in the CD. His expected return on mutual funds is 8% and on the CD is 4%. How much money should Alan invest in each area in order to have the largest return on his investments? What is his maximum one-year return?
A. Maximum one-year return is $1680 when he invests $21,000 in mutual funds and $0 in the CD. B. Maximum one-year return is $1120 when he invests $7000 in mutual funds and $14,000 in the CD. C. Maximum one-year return is $840 when he invests $0 in mutual funds and $21,000 in the CD. D. Maximum one-year return is $4200 when he invests $14,000 in mutual funds and $7000 in the CD.
Divide.
A. 27 r 4 B. 31 C. 27 D. 27 r 8