Solve the problem.Find the standard form of the equation of the circle. Assume that the center has integer coordinates and the radius is an integer. 
A. (x + 1)2 + (y - 2)2 = 9
B. x2 + y2 + 2x - 4y - 4 = 0
C. (x - 1)2 + (y + 2)2 = 9
D. x2 + y2 - 2x + 4y - 4 = 0
Answer: A
Mathematics
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Find the indicated cardinal number.Find n(D × B) given that B = {1, 3} and D = {7, 8, 9, 10}.
A.
| 8 |
B. 12
C. 16
D. 7
Mathematics
Write the number in decimal notation.The average high temperature in Death Valley, averaged over one week, was one hundred twenty-two and fifty-two hundredths °F.
A. 122.502 °F B. 122.0502 °F C. 122.52 °F D. 122.052 °F
Mathematics
Graph the equation.x2 + y2 = 4 
A. 
B. 
C. 
D. 
Mathematics
Perform the operation indicated.
? 
A. 
B. 
C. 
D. 
Mathematics