Provide an appropriate response.Which of the statements below is true?A: If (r1, ?1) and (r2, ?2) represent the same point in polar coordinates, then 
B: If (r1, ?1) and (r2, ?2) represent the same point in polar coordinates, then 
for some integer n.
A. A only
B. Neither A nor B
C. Both A and B
D. B only
Answer: A
Mathematics
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Write interval notation.{ x ? x < 3 }
A. [3, ?) B. (3, ?) C. (-?, 3) D. (-?, 3]
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E ( X )
The random variable X has the probability density function ( ) [ ) 0.2 0.2 0, f x e? = over ? . Compute the following quantities.
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Sketch the graph of f.f(x) = 3x + 3
A. 
B. 
C. 
D. 
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Provide an appropriate response.When any nonzero number is divided by 1, the result is 
.
A. the nonzero number B. 0 C. 1 D. impossible to compute
Mathematics