SAT Math Practice Question #37467 - SATify | SATify

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SAT Math Practice Question #37467 - SATify | SATify

#37467

coordinate geometry

circles

medium

75 sec

Calculator OK

What is the radius of the circle defined by the equation $x^{2} + 10 x + y^{2} - 2 y = 15$ ?

A.

$15$

B.

5

C.

$41$

D.

41