The center and radius of a circle are given. Write the equation of each circle in standard form.Center: (0, -1), r = 
A. x2 + (y - 1)2 = 13
B. (x - 1)2 + y2 = 169
C. (x + 1)2 + y2 = 169
D. x2 + (y + 1)2 = 13
Answer: D
Mathematics
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Solve the equation.
- 
= 6
A. 
B. 6
C. 
D. 
Mathematics
List the elements of the set.If A = {-5, -3, -2, -1, 2} and B = {-5, -3, -2, -1}, list the elements of 
A. {-5, -3, -2, -1, 2} B. ? C. {-5, -3, -2, -1} D. {2}
Mathematics
Find the equation in standard form of the parabola described.Vertex at (0, 0); Directrix the line y = 20
A. y2 = -80x B. x2 = -80y C. y2 = -20x D. x2 = 80y
Mathematics
Use the laws of exponents to simplify. Write the answer with positive exponents.(164/5)5/8
A. 64 B. 16 C. 256 D. 4
Mathematics