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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Use the leading-term test to match the function with the correct graph.f(x) = -0.4x7 + 0.13x6 - 0.26x5 + x4 + x3 - 3x - 5
A. 
B. 
C. 
D. 
Mathematics
Solve the inequality and graph the solution on the real number line.
?
?
A. 
B.
C.
D.
E. All real numbers
Mathematics
Solve the problem.Find the coordinates of the foci of the ellipse that is the intersection of z = 
+ 
with the plane z = 7.
A. (0, ±7, 7)
B. (0, ±
, 7)
C. (0, ±35, 7)
D. (0, 0, 7)
Mathematics
Find the indicated term of the arithmetic sequence.$803, $781 ,$759, . . . ;19th term
A. $407 B. $385 C. $451 D. $429
Mathematics