2 years ago

I reallyyyy need help with this pleaseee :(

Mathematics

1 answer:

Marat540 [252]2 years ago

5 0

Answer:

4th option

Step-by-step explanation:

using the rule of logarithms

$log^{n}$ = nlogx

$3^{7x}$ - 8 = - 2 ( add 8 to both sides )

$3^{7x}$ = 6 ( take the log of both sides )

log $3^{7x}$ = log6

7xlog3 = log6 ( divide both sides by 7log3 )

x = $\frac{log6}{7log3}$ ≈ 0.23 ( to the nearest hundredth )

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