Rewrite the equation in standard form. Find the center and radius of the circle.x2 + y2 + 4x - 12y + 4 = 0

A. (x + 2)2 + (y - 6)2 = 36
center (-2, 6), r = 36
B. (x - 6)2 + (y + 2)2 = 36
center (6, -2), r = 6
C. (x + 2)2 + (y - 6)2 = 36
center (-2, 6), r = 6
D. (x - 2)2 + (y + 6)2 = 36
center (2, -6), r = 6


Answer: C

Mathematics

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Choose the inequality that matches the graph.

A. y > x2 + 4x + 6
B. y ? x2 + 4x + 6
C. y ? x2 + 4x + 6
D. y < x2 + 4x + 6

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Solve the problem.A salesperson gets a commission of $1600 for the first $10,000 of sales, and then $800 for each additional $10,000 or partial of sales. Let S(x) represent the commission on x dollars of sales. Find the value of 

A. $5200 B. $3600 C. $4400 D. $4800

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Write the solution set to the inequality in interval notation.x ? 17

A. (17, ?) B. [17, ?) C. (-?, 17) D. (-?, 17]

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Find the area of , which has vertices at (0,0), (8,0), and (5,6).

What will be an ideal response?

Mathematics