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. An insurance company is willing to insure the concert for $150,000 against rain for a premium of $30,000. If he buys this policy, what are his expected earnings from the concert?
A. $180,000
B. $300,000
C. $270,000
D. $239,400
Answer: D
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Solve the problem.Apply 6% sales tax to the purchase of a $670 camera to find the total after tax. List the multiplier and the result. Round your answers to the nearest cent.
A. 1.06; $1072.00 B. 1.06; $710.20 C. 1.06; $716.90 D. 1.06; $703.50
Solve the polynomial equation. In order to obtain the first root, use synthetic division to test the possible rational roots. 2x4 - 15x3 + 45x2 - 45x + 13 = 0
A. {1, - 
, 2 + 3i, 2 - 3i}
B. {1, 
, 3 + 2i, 3 -2i}
C. {-1, 
, 3 + 2i, 3 - 2i}
D. {-1, - 
, 2 + 3i, 2 - 3i}
Choose the answer that lists three solutions for the equation.x + y = 17
A. (5, 12), (6, 11), (7, 10) B. (5, 17), (6, 16), (7, 15) C. (5, 12), (6, 11), (7, 20) D. (5, 22), (6, 23), (7, 24)
Graph the function f by starting with the graph of y = x2 and using transformations (shifting, compressing, stretching, and/or reflection).f(x) = -x2 - 6x 
A. 
B. 
C. 
D. 