Solve the problem.Suppose that f(x) = 2(7z - 1)-2 + 5(7z - 1)-1. Find the values of x such that f(x) = -2.
A. - 
, - 
B. -2, - 
C. - 
, 0
D. - 
, 
Answer: D
Mathematics
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Replace the Cartesian equation with an equivalent polar equation.x2 + y2 = 49
A. r = 7 sin ? B. r = 7 or r = -7 C. r = 49 D. r = 7 cos ?
Mathematics
Solve the problem. Unless stated otherwise, assume a commission of $5 per bond.Joe Simpson bought 36 Woodward Corp. (WDW) bonds maturing 2010. According to a bond table, the last price is 
and the coupon rate is 10.250. Find the effective interest rate using total cost including commissions.
A. 11.9% B. 7.0% C. 6.5% D. 11.7%
Mathematics
Graph the system of inequalities.x + 2y ? 2x + y ? 0
A. 
B. 
C. 
D. 
Mathematics
Divide.(16y4 + 16y3 + 4y - 1) ÷ (4y2 + 1)
A. 4y2 - 4y + 1 B. 4y2 + 4y C. 4y2 - 1 D. 4y2 + 4y - 1
Mathematics