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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Find all real numbers in the interval [0, 2?) that satisfy the equation.tan x = 3 cot x
A. 
B. 
C. 
D. No solution
Mathematics
What is the constant term in the polynomial below?
?
?
A. 2 B. -5 C. 5 D. 9 E. -9
Mathematics
Write exponential notation.9 ? 9 ? 9
A. 93 B. 91 C. 3 ? 9 D. 39
Mathematics
Find an equation of the line, and write it in (a) slope-intercept form if possible and (b) standard form.Through (-2, -6) and perpendicular to y = 
x + 13
A. (a) y = -3x - 12
(b) 3x + y = -12
B. (a) y = 3x - 12
(b) 3x - y = -12
C. (a) y = 
x - 
(b) x - 3y = 16
D. (a) y =- 
x - 
(b) x + 3y = -20
Mathematics