Find the range of the quadratic function.f(x) = -7(x - 3)2 - 7
A. [-7, ?)
B. (-?, 3]
C. (-?, -7]
D. [-3, ?)
Answer: C
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Find the probability.What is the probability that 20 rolls of a fair die will show 8 threes? Round to the nearest ten-thousandth.
A. 0.0017 B. 0.0168 C. 0.0084 D. 0.0042
Solve the problem.Consider a retirement savings account where the monthly contribution is $100 for the first 15 years, is increased to $225 for the next 15 years, and then is increased once again to $325 for the last 10 years. The APR is always 5.4% compounded monthly. What is the value of the account at the end of 40 years? Round your answer to the nearest cent.
A. $257,880.02 B. $255,975.42 C. $266,356.93 D. $281,406.16 E. $264,452.33
Use Simpson's Rule with n = 4 steps to estimate the integral.
A. 
B. 
C. 
D. 
Solve the problem.The profit made when t units are sold, t > 0, is given by 
Determine the number of units to be sold in order for P < 0 (a loss is taken).
A. t = 14 or t = 18 B. t < 14 or t > 18 C. t > 0 D. 14 < t < 18