?A publishing company introduces a new weekly magazine that sells for $4.65 on the newsstand. The marketing group of the company estimates that sales x (in thousands) will be approximated by the following probability function. Find the expected revenue. Round your answer to the nearest dollar.
??
x 1015203040 P(x) 0.23 0.28 0.21 0.12 0.16?
A. ?$96,255
B. ?$96
C. ?$491
D. ?$20,700
E. ?$490,622
Answer: A
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The magnitude M of an earthquake is related to the energy E, in terajoules, released by the quake. The relationship is given by the following equation:
A: What is the magnitude of a quake that releases 6.8 terajoules of energy? Round your answer to one decimal place.B: Make a graph of magnitude versus energy. Include up to 10 terajoules.C: What is the energy released by an earthquake of magnitude 5.29? Round your answer to two decimal places if necessary.
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What will be an ideal response?
Solve the problem.Find the total surface area of a right circular cone with diameter 18.9 ft and height 
A. 784 ft2 B. 2800 ft2 C. 1120 ft2 D. 3920 ft2
Use a calculator to approximate the square root to the nearest thousandth.
A. 6.250 B. 6.245 C. 6.242 D. 39.000
Describe what the given ordered pair represents.Let n be the average number of cars sold per week by a car dealer who works t hours per week. What does the ordered pair (38, 15) represent?
A. It will take 15 car deals to sell 38 cars per week B. A car dealer who works 38 hours per week will sell an average of 15 cars per week. C. A car dealer who works 15 hours per week will sell an average of 38 cars per week. D. It will take 38 car deals to sell 15 cars per week