Solve the problem.Initially a pool contains 300 gallons of water. A hose is placed in the pool, and the water is turned on. The hose adds 5.2 gallons of water per minute. Write an equation to represent the total amount V of water in the pool in terms of x, the number of minutes the hose has been on.
A. V = 5.2x + 300
B. V = 300x + 5.2
C. V = 5.2x
D. V = -5.2x + 300
Answer: A
You might also like to view...
Factor the polynomial completely.27a3 - 64b3
A. (3a + 4b2)(9a2 - 12ab + 16b2) B. (27a - 4b)(a2 + 12ab + 16b2) C. (3a - 4b)(9a2 + 16b2) D. (3a - 4b)(9a2 + 12ab + 16b2)
Provide an appropriate response.A shipment of 20 digital cameras contains two that are defective. A random sample of three is selected and tested. Let X be the random variable associated with the number of defective cameras in a sample. Find the probability distribution of X and the expected number of defective cameras in a sample.
What will be an ideal response?
Solve the problem.Irene wants to invest $36,000 in stocks, bonds, and gold coins. She knows that her rate of return will depend on the economic climate of the country, which is difficult to predict. After some research and analysis, she determines the annual profit in dollars that she would expect per hundred dollars on each type of investment, depending on whether the economy is strong, stable, or weak. 
How should Irene invest her money in order to maximize her profit regardless of what the economy does? In other words, consider the problem as a matrix game in which Irene is playing against "fate".
A. Irene should invest $14,000 in stocks, $8000 in bonds, and $18,000 in gold. B. Irene should invest $12,000 in stocks, $8000 in bonds, and $16,000 in gold. C. Irene should invest $16,000 in stocks and $20,000 in gold. D. Irene should invest $15,000 in stocks and $21,000 in gold.
Find the exact value of the real number y.y = sin-1 
A. - 
B. 
C. 
D. 