Solve the problem.Given that the polar equation r =  models the orbits of the planets, estimate the closest approach of Pluto's orbit, for which  and  to the sun.

A. About 74 astronomical units
B. About 30 astronomical units
C. About 39 astronomical units
D. About 50 astronomical units

Answer: B

Mathematics

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Perform the indicated operations and simplify the result. Leave the answer in factored form. - 

A.
B. 0
C.
D.

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Mathematics

Perform the indicated operations. Express your answer in standard form.Square 7y - 3.

A. 49y2 + 42y + 9 B. 49y2 + 9 C. 49y2 - 42y + 9 D. 14y2 + 6

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Mathematics

Find a general term an for the geometric sequence.The first five terms of the sequence are 2, - , , - , .

A. an = 6  n-1
B. an = 2  n-1
C. an = 2  n-1
D. an =   n-1

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Mathematics

Determine whether the relation defines y as a function of x. Give the domain.y = 

A. Not a function; domain: 
B. Function; domain: (-?, ?)
C. Function; domain: 
D. Not a function; domain: 

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Mathematics