Solve the problem.A person burns 9.4 calories per minute while walking. One must burn about 3500 calories in order to lose 1 lb. How many pounds would the person lose by walking for 9 hours? Round to the nearest hundredth.
A. 14.50 lb
B. 0.02 lb
C. 1.02 lb
D. 1.45 lb
Answer: D
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Use scientific notation to solve the problem.How many liters of oil are needed to supply the electrical energy needs of an average U.S. home for 10 weeks? Assume that the energy released by burning one liter of oil is 1.2 × 107 joules and that the electrical energy used daily in an average U.S. home is 5 × 107 joules. Round your answer to the nearest tenth of a liter.
A. 291.7 liters B. 2.4 liters C. 16.8 liters D. 41.7 liters
Find the derivative of y with respect to x, t, or ?, as appropriate.y = 
A. 
B. 
C. 
D. 
Provide an appropriate response.Solve: 
< 1
A. x < 3 or x > 5 B. x < -5 or x > -3 C. 3 < x < 5 D. -5 < x < -3
Find the center (h, k) and radius r of the circle with the given equation. x2 + (y + 1)2 = 144
A. (h, k) = (-1, 0); r = 12 B. (h, k) = (0, -1); r = 144 C. (h, k) = (-1, 0); r = 144 D. (h, k) = (0, -1); r = 12