Simplify the expression.
? 
A. 9
B. 3
C. 3
D. 
Answer: A
Mathematics
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Use the graph to determine the equation of the circle in center-radius form.
A. (x - 2)2 + (y + 3)2 = 3 B. (x + 2)2 + (y - 3)2 = 3 C. (x - 2)2 + (y + 3)2 = 9 D. (x + 2)2 + (y - 3)2 = 9
Mathematics
Convert as indicated. Express the answer in decimal form when needed.4.0 miles per week to feet per week
A. 7040 ft/wk B. 586.67 ft/wk C. 21,120 ft/wk D. 1760 ft/wk
Mathematics
Solve the system of equations by Gaussian elimination.
A. {(0, -1)} B. {(-1, -1)} C. {(0, -2)} D. ?
Mathematics
Solve the problem.After a 16% price reduction, a boat sold for $22,680. What was the boat's price before the reduction? (Round to the nearest cent, if necessary.)
A. $3628.80 B. $26,308.80 C. $27,000 D. $141,750.00
Mathematics