Find the center and radius of the circle by completing the square.x2 + 6x + y2 - 8y + 21 = 0
A. (3, -4); r = 4
B. (3, -4); r = 2
C. (-3, 4); r = 2
D. (-3, 4); r = 4
Answer: C
Mathematics
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Graph the line.y = - 
x - 2
A. 
B. 
C. 
D. 
Mathematics
Find the equivalent fraction with the given numerator or denominator.2; denominator = 6
A. 
B. 
C. 
D. 
Mathematics
Using the factoring method, solve for the roots of the quadratic equation.30x2 + 5x = 0
A. x = 0, x = 6
B. x = 0, x = 
C. x = 0, x = -6
D. x = 0, x = - 
Mathematics
Evaluate the integral.
A. e4/3
B. ln 
C. 
ln 
D. 
ln 
Mathematics