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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Write a formula for the general term, or nth term, for the given sequence.-4, 16, -64, 256, -1024, . . .
A. an = (-1)n(4n) B. an = -4 + 12(n - 1) C. an = (-1)n(4)n D. an = (-1)n - 1(4)n
Mathematics
Use the row transformation described to transform the matrix.
A. 
B. 
C. 
D. 
Mathematics
Write the phrase as a variable expression. Use x to represent "a number."The sum of a number and 138
A. x + 138 B. 138 - x C. 138x D. 138
Mathematics
The sides of the square base of a regular pyramid measure 8 inches each while the altitude measures 10 inches. To the nearest degree, find the measure of the angle formed by the slant height and the apothem of square base of the pyramid shown.
A. 56° B. 60° C. 64° D. 68°
Mathematics