Determine the domain of the variable x in the expression.f(x) = 
A. {x|x ? -5}
B. {x|x ? 0}
C. {x|x ? 8}
D. all real numbers
Answer: C
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Find Dxy.y = x4 coth x
A. 4x3 coth x - x4 csch2 x B. 4x3 coth x - x4 csch x coth x C. -4x3 csch2 x D. 4x3 coth x + x4 csch2 x
Give the prime factorization of the number. Use exponents when possible.2937
A. 32 x 89 B. 112 x 89 C. 3 x 11 x 89 D. 33 x 89
Solve the problem. Round your answer, if appropriate.For a particular circuit, the current (in amperes) after time t (in seconds) at a certain point P is given by 
Find the charge (in coulombs) that passes point P during the first second by evaluating 
A. 1.21 coulombs B. 0.005 coulombs C. 0.0041 coulombs D. 244 coulombs
Solve the problem.At $2.40 per cubic ft, how much will it cost to fill a container with dimensions of 
A. $346.80 B. $255.00 C. $408.00 D. $768.00