Find the indicated vector.Let u = 
. Find 2u.
A. 
B. 
C. 
D. 
Answer: C
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Find the sum of the series.x5 - x7+ x8 - x4 + ...
A. 
B. 
C. 
D. 
Solve the problem.A spinner has ten regions numbered 1 through 10. If the spinner is spun 100 times, we would expect about 10 of the outcomes to be Region 1. It can be determined that the spinner is unbalanced if x, the number of outcomes that result in Region 1, satisfies 
? 1.645. Describe the number of outcomes that determine an unbalanced spinner that is spun 100 times.
A. Fewer than 6 or more than 14 outcomes B. Fewer than 9 or more than 17 outcomes C. Between 6 and 14 outcomes D. Between 9 and 17 outcomes
Rationalize the denominator.
A. 10
B. 
C. 3
D. 3
Simplify the radical expression by factoring out the largest perfect nth power. Assume that all variables are positive.
A. 8
B. 384x
C. 8x
D. 8x