Use the shell method to find the volume of the solid generated by revolving the shaded region about the indicated axis.About the y-axis
A. 32?
B. 
?
C. 64?
D. 
?
Answer: B
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Find the value of each square root by use of a calculator. Each number is approximate.
A. 7.80 B. 24.7 C. 3710 D. 7.8
Solve.The formula 
represents the number of households N, in thousands, in a certain city that have a computer x years after 1990. According to the formula, in what year were there 89 thousand households with computers in this city?
A. 1993 B. 1994 C. 1995 D. 1992
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Fill in the blank(s) with the appropriate word(s).
Solve the problem.To convert a Fahrenheit temperature to a Celsius temperature, we subtract 32 from the Fahrenheit temperature and then multiply the result by 
. When the temperature is 50°F, what is the temperature in degrees Celsius? Round to the nearest tenth of a degree.
A. 4.2°C B. 122.0°C C. 58.0°C D. 10.0°C