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Solve 9^2x=66 round to the nearest ten-thousandth

2 Answers

5 votes
If you simplify it, you get x= In(66)/4in(3)
So the answer would be 0.953397... or 1 when you round it
Hope it helps
User Rji Rji
by
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2 votes
ANSWER


x = 0.95340

Step-by-step explanation

The given expression is


{9}^(2x) = 66

We take logarithm of both sides to base e to get,


ln( {9}^(2x) ) = ln(66)

This implies that,


2x ln(9) = ln(66)

Or


2x ln( {3}^(2) )=ln(66)

This implies that,


4x ln(3) = ln(66)

We divide both sides by 4ln(3) to get,


x = (ln(66) )/(4 ln(3) )

x = 0.953397

To the nearest ten-thousandth, we have,


x = 0.95340
User Hazzamataza
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8.7k points