Solve the problem.A mutual fund invests $68,000 in utility stocks and earns 4% per year on the investment. How much money is earned per year?
A. $2720
B. $1,700,000
C. $170,000
D. $27,200
Answer: A
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Evaluate the double integral over the given region.
R: 0 ? x ? 1, 0 ? y ? 1
A. 
(e5 - e3 - e2 - 1)
B. 
(e5 - e3 - e2 + 1)
C. 
(e5 - e3 - e2 - 1)
D. 
(e5 - e3 - e2 + 1)
Find the gradient field F of the function f.f(x, y, z) = 
A. F = - 
i - 
j - 
k
B. F = - 
i - 
j - 
k
C. F = 
i + 
j + 
k
D. F = 
i + 
j + 
k
Solve the problem.Jane has invited 50 people to a party and expects 
to attend. Of those invited who attend, 
will bring a date. Express the expected number of guests n as an inequality and graph the values of n.
n = number of guests
A. 24 ? n ? 40
n = number of guests
B. 42 ? n ? 60
n = number of guests
C. 20 ? n ? 25
n = number of guests
D. 30 ? n ? 40
n = number of guests
Use the data set {0, 4, 4, 8, 4, 16} to answer the following question(s).The standard deviation of the data set is
A. 25.333. B. 12.329. C. 152. D. 13.266. E. none of these