Find the domain of the function.f(x) = 
A. {x|x ? -4}, or [-4, ?)
B. {x|x ? 4}, or [4, ?)
C. {x|x < -4}, or (-?, -4)
D. {x|x < 4}, or (-?, 4)
Answer: D
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A. 0.4721% B. 472.1% C. 0.04721% D. 47.21% E. none of the above
Solve the problem.A manufacturer's cost is given by C = 500n1/3 + 1500, where C is the cost in dollars and n is the number of parts produced. Find the cost when 125 parts are produced.
A. $4000 B. $100 C. $7090 D. $2750
Solve the problem.A field microphone used at a soccer game has a parabolic cross section and is 16 in. wide at the opening. The focus is 4 in. from the vertex. Find the depth of the microphone.
A. 4.00 in. B. 1.78 in. C. 16.00 in. D. 64.00 in.
A hot, wet summer is causing a mosquito population explosion in a lake resort area. The number of mosquitoes is increasing at an estimated rate of 
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What will be an ideal response?