SOLUTION: Solve the following equations for x, correct to three to significant figures:
5x+2 = 101
a)log5^(x+2) = log101
b)Log4 (x + 3) - Log4 x = 3
c)If log2 y = 1
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Question 941456: Solve the following equations for x, correct to three to significant figures:
5x+2 = 101
a)log5^(x+2) = log101
b)Log4 (x + 3) - Log4 x = 3
c)If log2 y = 15, find the value of log2 8y
d)Solve the equation: 52x – 6(5x) = 0
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
5x+2 = 101
a)log5^(x+2) = log101
log(5^(x+2)) = log(101)
(x+2)*log(5) = log(101)
x+2 = log(101)/log(5)
x = log(101)/log(5) - 2
=======================
b)Log4 (x + 3) - Log4 x = 3
(x+3)/x = 64
etc.
===================
c)If log2 y = 15, find the value of log2 8y
=
= 18
===================
d)Solve the equation: 52x – 6(5x) = 0
x = 0
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