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SAT Math Practice Question #11666 - SATify | SATify
#11666
equations
algebra
functions
easy
15 sec
A function
k
is defined by
k
(
z
)
=
2
1
z
. For what value of
z
does
k
(
z
)
=
10
?
A.
5
B.
10
C.
15
D.
20
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