Find the mean and standard deviation of the specified probability density function.f(x) = 0.04e-0.04x for [0, ?)
A. ? = 2.5, ? = 2.5
B. ? = 20, ? = 20
C. ? = 25, ? = 25
D. ? = 25, ? = 15
Answer: C
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Write the quotient without using exponents.
A. 0.008 B. 0.004 C. 40 D. 80
Solve the application problem.The net income y (in millions of dollars) of Pet Products Unlimited from 1997 to 1999 is given by the equation 
where x represents the number of years after 1997. Assume this trend continues and predict the year in which Pet Products Unlimited's net income will be $352 million.
A. 2001 B. 2002 C. 2003 D. 2004
Give the domain and range of the relation.{(-3, 7), (-2, 2), (0, -2), (2, 2), (4, 14)}
A. domain: {7, 2, -2, 14}; range: {-3, -2, 0, 2, 4} B. domain: {7, 2, -2, 14}; range: {-3, -2, 2, 4} C. domain: {-3, -2, 0, 2, 4}; range: {7, 2, -2, 14} D. domain: {-3, -2, 2, 4}; range: {7, 2, -2, 14}
Evaluate.(
)1
A. 0
B. 
C. 1
D. 11