Find the infinite sum accurate to three decimal places.
A. 0.460
B. -0.859
C. -0.320
D. 0.859
Answer: A
Mathematics
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A pitching machine throws 70% strikes and 30% balls. Five pitches will be thrown by the machine.What is the probability the machine will throw one ball and four strikes?
A. 
B. 5 × 0.3 × 0.74
C. 0.3 + 4 × 0.7
D. 0.3 × 0.74
E. none of these
Mathematics
Solve the problem.Suppose T is a tree with 21 vertices. Then
A. T has no bridges. B. T has 20 bridges. C. T has one bridge. D. T can have any number of bridges. E. none of these
Mathematics
Factor.2n2 + 5n - 63
A. (2n - 9)(9 - 2n) B. (2n - 72)(2n - 9) C. (2n - 9)(n + 7) D. (2n - 9)(n - 7)
Mathematics
Solve.
k = 6
A. k = 12 B. k = 9 C. k = 8 D. k = 2
Mathematics