Find the exact value of the integral using formulas from geometry.
dx
A. 100?
B. 10?
C. 50?
D. 25?
Answer: D
Mathematics
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Solve the quadratic inequality by graphing an appropriate quadratic function.x2 - 8x + 7 ? 0
A. (-?, 1] ? [7, ?) B. [1, 7] C. [7, ?) D. (-?, 1]
Mathematics
Use a method of your choice to solve the equation.
= 3
A. x = - 
B. x = - 
C. x = 
D. x = - 6
Mathematics
Suppose that in the loan described, the borrower paid off the loan after the time indicated. Calculate the amount needed to pay off the loan.$9200; 9.4% compounded semiannually; 18 semiannual payments; paid off after 4 years.
A. $5029.02 B. $11,400.15 C. $6023.06 D. $11.97
Mathematics
Give the equation for a circle with the given center and radius.Center at (-9, 0), radius 
A. (x + 9)2 + y2 = 13 B. x2 + (y + 9)2 = 169 C. (x - 9)2 + y2 = 13 D. x2 + (y - 9)2 = 169
Mathematics