Find the expected value.Mr. Cameron is sponsoring an summer concert. He estimates that he will make $300,000 if it does not rain and make $60,000 if it does rain. The weather bureau predicts the chance of rain is 0.34 for the day of the concert. What are Mr. Cameron's expected concert earning?
A. $300,000
B. $360,000
C. $60,000
D. $218,400
Answer: D
Mathematics
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f(x) = 
f 
to find the limit.
n
A. e1/2 B. e-1/2 C. e-2 D. e2
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Identify the specified numbers.The integers in the following list:25, 
, -20, 0, 
, - 
, 1.8, 
A. 25, -20, 0, 
B. 25, 0
C. 25, 0, 
D. 25, -20, 0
Mathematics
Solve the given system of equations algebraically.x2 + y2 = 164x2 - y2 = 36
A. x = 10, y = 8; x = 8, y = 10; x = -10, y = -8; x = -8, y = -10 B. x = -10, y = -8; x = -8, y = -10 C. x = 10, y = -8; x = 10, y = 8 D. x = 10, y = 8; x = -10, y = 8; x = 10, y = -8; x = -10, y = -8
Mathematics
Solve the problem.What is the y-intercept of y = tan x?
A. 1
B. 0
C. 
D. none
Mathematics