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. x2 + y2 + 2x - 4y - 4 = 0
D. (x + 1)2 + (y - 2)2 = 9
Answer: D
Mathematics
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Solve the system of equations.
A. {(0, 0, -1)} B. {(0, -1, 0)} C. {(0, -1, 1)} D. {(-1, 0, -1)}
Mathematics
Graph the line containing the point P and having slope m.P = (7, -2); m = - 
A. 
B. 
C. 
D. 
Mathematics
If the distance from the earth to the sun is 
million miles, and the angle formed between Venus, the earth, and the sun is 
(as shown in the figure below), find the distance from the sun to
Venus (to the nearest hundred thousand miles).
?
?
A. 66,300,000 miles
B. 66,500,000 miles
C. 66,400,000 miles
D. 132,500,000 miles
E. 66,100,000 miles
Mathematics
Solve the problem.Find the length of the curve 
between x = 0 and x = 1.
A. 
?
B. 
?
C. 
?
D. 
?
Mathematics