Find the expected value.Suppose that 1,000 tickets are sold for a raffle that has the following prizes: one $300 prize, two $100 prizes, and one hundred $1 prizes. What is expected value of a ticket?
A. $300
B. $0.60
C. $1
D. $100
Answer: B
Mathematics
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A. ±19.5
B. 14
C. ±13
D. ±
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Determine whether f is continuous at c.f(x) = 
;c = 9
A. continuous B. not continuous
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Use Newton’s method and x1 = ?1 to find an approximate solution of ?2cos x = x + sin x .
What will be an ideal response?
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Factor completely.t3 + 64
A. (t - 64)(t2 - 1) B. (t + 4)(t2 - 4t + 16) C. (t + 4)(t2 + 16) D. (t - 4)(t2 + 4t + 16)
Mathematics