Solve the equation. Express irrational answers in exact form and as a decimal rounded to 3 decimal places.
x = 81 - x
A. 
? 0.790
B. 
? 0.593
C. 
? 1.688
D. ln 
- ln 8 ? -2.927
Answer: C
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Factor.y2 + 10y + 21
A. (y - 3)(y - 7) B. (y + 21)(y + 1) C. (y + 3)(y + 7) D. (y - 3)(y + 7)
Use the real estate amortization table to find the monthly payment for the loan.
What is the monthly payment on a 30-year loan of $106,600 if the annual interest rate is 7%?
A. $826.15 B. $708.89 C. $753.66 D. $745.13
Provide an appropriate response.For the series 
, use the inequalities 
to find an interval containing the sum S. Use the midpoint of the interval to approximate the sum of the series. Find the maximum error of the approximation.
A. 1.63028 ? S ? 1.663616; S ? 1.64695 error < 1.05 B. 1.63028 ? S ? 1.663616; S ? 1.64695 error < 0.05 C. 0.63028 ? S ? 0.663616; S ? 0.64695 error < 0.05 D. 2.63028 ? S ? 2.663616; S ? 2.64695 error < 0.05
Determine whether the given function is one-to-one. If it is one-to-one, find a formula for the inverse.f(x) = x 
A. Not one-to-one
B. f-1(x) = x2 + 3
C. f-1(x) = x 
D. f-1(x) = x3 - 3