The letters x and y represent rectangular coordinates. Write the equation using polar coordinates (r, ?).y2 = 16x
A. r2 sin2 ? = 16 cos ?
B. sin2 ? = 16r2 cos ?
C. r sin2 ? = 16 cos ?
D. sin2 ? = 16r cos ?
Answer: C
Mathematics
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A. x2(x + 4) B. x(x + 4) C. x D. x + 4
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A. y-intercept: (-5, 0), m: undefined
B. y-intercept: (0, 0), m: - 
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D. y-intercept: (0, -5), m: 0
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A. 7m - 16 B. -19m - 16 C. -19m + 4 D. -19m + 0
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Use geometry to evaluate the definite integral.
A. 8 B. 4 C. 2 D. 1
Mathematics