Rephrase the statement in the requested symbolic form.inverse of ~a ? ~b

A. ~b ? ~a
B. ~a ? b
C. a ? b
D. b ? a


Answer: C

Mathematics

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Use a calculator to approximate the area of the surface generated when the given curve is revolved about the x-axis. Round to two decimal places when necessary.y = sinx on  

A. 13.39 B. 7.65 C. 5.1 D. 1.15

Mathematics

Find the inverse of the following one-to-one function.f(x) = 7x - 4

A. f-1(x) =  + 4
B. f-1(x) = 
C. f-1(x) = 
D. Not invertible

Mathematics

Solve the problem.The half-life of plutonium-234 is 9 hours. If 100 milligrams is present now, how much will be present in 4 days? (Round your answer to three decimal places.)

A. 47.742 B. 4.592 C. 73.486 D. 0.062

Mathematics

Solve the problem. Express the answer in scientific notation to two decimals unless requested otherwise.If the speed of light is 3.00 × 108m/sec, how long does it take light to travel 2.29 × 1011 m, the distance from the sun to Mars? Round to one decimal place.

A. 7.6 × 102 min B. 7.6 × 103 sec C. 7.6 × 102 sec D. 76 sec

Mathematics