The letters r and ? represent polar coordinates. Write the equation using rectangular coordinates (x, y).r = 2(sin ? - cos ?)
A. x2 + y2 = 2x - 2y
B. x2 + y2 = 2y - 2x
C. 2x2 + 2y2 = x - y
D. 2x2 + 2y2 = y - x
Answer: B
Mathematics
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What will be an ideal response?
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Solve the triangle.
A. C = 60°, a = 23.3, c = 19.38 B. C = 55°, a = 23.3, c = 19.38 C. C = 55°, a = 19.38, c = 23.3 D. C = 50°, a = 19.38, c = 23.3
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Solve the equation using the Addition Property of Equality. Be sure to check your solution.- 
= - 
+ x
A. 
B. 
C. 
D. 
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Write the whole number.Seven hundred ninety-nine
A. 7099 B. 7990 C. 799 D. 700,099
Mathematics