Perform the indicated operation.
+ 
A. 
B. 
C. - 
D. - 
Answer: D
Mathematics
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Solve the problem.Find the volume of the solid generated by revolving the region in the first quadrant bounded by the coordinate axes, the curve y = ex, and the line x = ln 3 about the line x = ln 3.
A. 2?(2 + ln 3) B. 2?(2 - ln 3) C. 2?(3 - ln 4) D. 2?(3 - ln 3)
Mathematics
Find the exact value of the expression.cos 40° cos 20° - sin 40° sin 20°
A. 
B. 
C. 
D. 
Mathematics
Use substitution to determine whether the given number is a zero of the given polynomial.-2; f(x) = 4x3 + 9x2 + x - 2
A. Yes B. No
Mathematics
Find the domain of the composite function f?g. Write the domain in interval notation.f(x) = 
, g(x) = x + 4
A. (-?, ?) B. (-?, -10) ? (-10, ?) C. (-?, -6) ? (-6, -4) ? (-4, ?) D. (-?, -6) ? (-6, ?)
Mathematics