Find: a. The center and radius of the circle. b. The x- and y-intercepts of the graph of the circle.x2 + y2 - 2x + 2y - 6 = 0
A. a. center = (-1, -1); radius = 2
b. (1 + 
, 0), (0, -1 + 
)
B. a. center = (-1, 1); radius = 8
b. (1 + 
, 0), (0, -1 + 
)
C. a. center = (1, -1); radius = 2
b. (-1 + 
, 0), (-1 - 
, 0), (0, 1 + 
), (0, 1 - 
)
D. a. center = (1, -1); radius = 2
b. (1 + 
, 0), (1 - 
, 0), (0, -1 + 
), (0, -1 - 
)
Answer: D
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Solve the problem.Mr. Larsen's third grade class has 22 students, 12 girls and 10 boys. Two students must be selected at random to be in the spring play. What is the probability that one boy and one girl will be chosen? Order is not important.
A. 
B. 
C. 
D. 
Solve the equation.
x - 
x = 0.75
A. 1
B. 3
C. 
D. 2
Perform the operation and reduce to lowest terms.
× 
× 
A. 
B. 
C. 
D. 
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A. $523.00 B. $518.02 C. $362.61 D. $513.13