SAT Math Practice Question #25899 - SATify | SATify

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SAT Math Practice Question #25899 - SATify | SATify

#25899

algebra

Calculus

medium

120 sec

Real numbers $x$ and $y$ satisfy the equation $x^{2} + y^{2} = 6 x + 14 y - 58$ . What is $x y$ ?

A.

10

B.

15

C.

18

D.

21

E.

25