The letters r and ? represent polar coordinates. Write the equation using rectangular coordinates (x, y).r = 5

A. x + y = 5
B. x2 - y2 = 25
C. x2 + y2 = 25
D. x + y = 25

Answer: C

Mathematics

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A. {1, - 7} B. {1, 7} C. {7, 0} D. {- 1, - 7}

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A. (4y - 3)(2y - 3) B. (8y + 1)(y - 9) C. (8y + 3)(y + 3) D. (4y + 3)(2y + 3)

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A. 200 dollars
B. 1650 dollars
C. 202 dollars
D. 24 dollars

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