faith2288g faith2288g

03-08-2020
Mathematics

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Solve for X

1.) 5(4)^x=320 solve for x

2.) 7 (1/3)^x=7/27 solve for x

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iamzamani iamzamani

03-08-2020

Answer:

[tex]5(4)^x=320\\\frac{5(4)^x}{5}=\frac{320}{5}\\ 4^x=64\\x*(log(4) )=log(64)\\x=\frac{log(64)}{log(4)}\\ x=3[/tex]

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