Provide an appropriate response.If X is normally distributed with ? = 150 and ? = 30, find P(90 < X < 180).
A. 0.8243
B. 0.3185
C. 0.8185
D. 0.8173
E. 0.1359
Answer: C
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Find the volume.Find the volume of the solid generated by revolving the region under the curve 
from 
to 
about the 
A. 9?
B. 18?
C. 9
D. 
?
Solve the radical equation.
= -4
A. 
B. 
C. 
D. 
Solve the problem.A survey revealed that 36% of people are entertained by reading books, 26% are entertained by watching TV, and 12% are entertained by both books and TV. What is the probability that a person will be entertained by either books or TV? Express the answer as a percentage.
A. 62% B. 50% C. 12% D. 74%
Solve the problem. Round your answer to three decimals.How long will it take for an investment to triple in value if it earns 10.5% compounded continuously?
A. 6.601 years B. 5.231 years C. 10.463 years D. 11.03 years