Answer the question.For f(x) = x2 - 64 and g(x) = 2x + 3, what is the domain of g?f?
A. All real numbers
B. 
C. 
x ? - 
D. 
x ? - 
Answer: A
Mathematics
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Find the centroid of the region bounded by the given curves.The region bounded by the x-axis and the curve y = 5sin x, 0 ? x ? ?
A. 
= 
, 
= 
B. 
= ?, 
= 
C. 
= 
, 
= 
D. 
= 
, 
= 
Mathematics
Solve the problem.
A 49-year-old man deposits a total of $2000 per year in an IRA until age 65. How much money will be in the account if the interest rate is 8% compounded semiannually with payments of $1000 made at the end of each semiannual period?
A. $125,402.94 B. $118,656.67 C. $59,328.34 D. $62,701.47
Mathematics
Solve the equation.
- 7 = 0
A. 
B. {49}
C. 
D. ?
Mathematics
Simplify.
A. 3x2y
B. 9x2y
C. 63xy
D. 3x4y2
Mathematics