Evaluate the logarithm.log9
A. -81
B. -3
C. 3
D. 81
Answer: B
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Solve the problem.Find the work done in pumping the water out of the top of a cylindrical tank 6.0 ft in radius and 13.0 ft high, given that the tank is initially full and the water weighs 62.4 lb/ft3.
A. 5.96 x 105 ft?lb B. 3.57 x 106 ft?lb C. 3.98 x 105 ft?lb D. 9.94 x 104 ft?lb
Write a sentence containing scientific notation for the answer.In a particular state with a population of 5.0 × 106 people, the average citizen spends 
on housing each year. Multiply those two numbers to find the total spent on housing in the state.
A. Citizens in this particular state spend $31.05 × 1010 on housing per year. B. Citizens in this particular state spend $3.105 × 109 on housing per year. C. Citizens in this particular state spend $31.05 × 1011 on housing per year. D. Citizens in this particular state spend $3.105 × 1010 on housing per year.
Solve the problem.If money is invested for 3 years , with interest compounded annually, the future value of the investment varies directly as the cube of (1 + r), where r is the annual interest rate. If the future value of the investment is $4499.46 when the interest rate is 4%, what rate gives a future value of 
A. 4% B. 20% C. 0.02% D. 2%
Determine whether the pair of lines is parallel, perpendicular, or neither. 4x - 2y = 11 4x + 3y = 11
A. Parallel B. Perpendicular C. Neither