Multiply.4 ? (-4) ? (-11) ? (-5)
A. -880
B. 181
C. 880
D. -16
Answer: A
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Solve the problem.At lift-off, a rocket weighs 40.3 tons, including the weight of fuel. It is fired vertically, and the fuel is consumed at the rate of 2.16 tons per 1,000 ft of ascent. How much work is done in lifting the rocket to an altitude of 10,000 ft?
A. 5.11 x 105 ft?ton B. 2.95 x 105 ft?ton C. 3.31 x 105 ft?ton D. 3.49 x 105 ft?ton
Provide an appropriate response.The interest on municipal bonds may be exempt from federal income taxes.
A. True B. False
Use the given feasible region determined by the constraint inequalities to find the minimum possible value of the objective function.f = 7x + 6y subject to the constraints 
A. 385 B. 0 C. 275 D. 231
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