For the functions f(x) and g(x), determine the domain of (f + g)(x) (the sum of f and g).f(x) = 
, g(x) = -3x - 5
A. {x ? x is a real number and x ? 5}
B. {x ? x is a real number and x ? -11}
C. {x ? x is a real number and x ? 11}
D. {x ? x is a real number}
Answer: C
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Use logarithmic differentiation to find the derivative of y with respect to the independent variable.y = (x + 8)x
A. x ln(x + 8)
B. (x + 8)x
C. ln(x + 8) + 
D. x + (8)x-1
Find the mass of the wire that lies along the curve r and has density ?.r(t) = (2 cos t)i + (2 sin t)j + 2tk, 0 ? t ? 2?; ? = 5
A. 20?
units
B. 40?
units
C. 4?
units
D. 10? units
Provide an appropriate response.The person to whom the proceeds of an insurance policy are payable is called the:
A. insured B. policyholder C. insurer D. beneficiary
Insert <, >, or = between the pair of numbers to form a true statement.
_____ 5.75
A. < B. > C. =