A point in rectangular coordinates is given. Convert the point to polar coordinates, r > 0.
?
?
A. Polar coordinates: 
B. Polar coordinates: 
C. Polar coordinates: 
D. Polar coordinates: 
E. Polar coordinates: 
Answer: A
Mathematics
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A. y = 
x - 
B. y = 
x + 
C. y = - 
x + 
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Solve the problem.In a survey about the number of siblings of college students, the following probability table was constructed: 
What is the probability that a student has at least 2 siblings?
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Write the fraction in decimal notation.
A. 
B. 
C. 
D. 
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