Determine whether the statement is true or false.
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A. False
B. True
Answer: B
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Use integration by parts to establish a reduction formula for the integral.
A. 
= - 
xn-1 e- x2 + 
B. 
= n xn-1 e- x2 + 2n 
C. 
= - 2xn-1 e- x2 - 2(n - 1) 
D. 
= - 
xn e- x2 + 
Solve the problem.In 1999 the stock market took big swings up and down. A survey of 970 adult investors asked how often they tracked their portfolio. The table shows the investor responses. What is the probability that an adult investor tracks his or her portfolio daily? 
A. 25.46% B. 27.32% C. 28.87% D. 24.02%
Find the mean. Round to the nearest tenth when necessary.The numbers of miles John ran over the last six days were as follows: 4, 5, 10, 6, 11, 9
A. Mean = 8 miles B. Mean = 7.5 miles C. Mean = 6 miles D. Mean = 9 miles
Find all the real zeros of the polynomial. Use the quadratic formula if necessary.
?
?
A. ?
B. ?
C. ?
D. ?
E. ?