Solve the problem.The population of a town was 34,500 at the beginning of 1970. If the population decreased 250 people per year, how many people lived in the town at the beginning of 1985?
A. 30,500
B. 3750
C. 31,000
D. 30,750
Answer: D
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Solve the problem.At lift-off, a rocket weighs 40.6 tons, including the weight of fuel. It is fired vertically, and the fuel is consumed at the rate of 2.65 tons per 1,000 ft of ascent. How much work is done in lifting the rocket to an altitude of 11,000 ft?
A. 6.07 x 105 ft?ton B. 3.40 x 105 ft?ton C. 2.86 x 105 ft?ton D. 3.66 x 105 ft?ton
Use a calculator to find 
.
?
Please round the answer to the nearest ten-thousandth.
Fill in the blank(s) with the appropriate word(s).
Solve.A lake is stocked with 350 fish of a new variety. The size of the lake, the availability of food, and the number of other fish restrict growth in the lake to a limiting value of 2187. The population of fish in the lake after time t, in months, is given by the function P(t) = 
.Find the population after 20 months.
A. 2156 B. 2176 C. 2181 D. 2166
Use the square root property to solve the equation.(x - 6)2 = 15
A. 6 ± 
B. 
- 
C. 
+ 6
D. -6 ± 