SOLUTION: If 2^y=10, find the value of 8^(2y-1)
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Question 1186695
:
If 2^y=10, find the value of 8^(2y-1)
Found 2 solutions by
MathLover1, ikleyn
:
Answer by
MathLover1(20849)
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put this solution on YOUR website!
If
, find the value of
first find
....take log of both sides
substitute in
Answer by
ikleyn(52780)
(
Show Source
): You can
put this solution on YOUR website!
.
If 2^y=10, find the value of 8^(2y-1)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
=
=
= now replace in this formula
by
to get =
=
= 125000.
ANSWER
Solved.
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