mariaholmos2
mariaholmos2 mariaholmos2
  • 07-05-2019
  • Mathematics
contestada

what is the solution to the equation below? 4•3^x=27.48

round your answer to 2 decimal places
A. x=1.33
B. x=2.96
C. x=2.29
D. x=1.75

Respuesta :

jamesphantos11
jamesphantos11 jamesphantos11
  • 07-05-2019

Answer:

D. X=1.75

Step-by-step explanation:

To start, let’s divide both sides by 4.

So 3^x =27.48/4

Since we want to solve for x, we take the log_3 of both sides.

So [tex]log_{3}3^x[/tex]=[tex]log_{3}6.87[/tex]

Using the laws of logs, we get

[tex]x*log_{3}3[/tex]=[tex]log_{3}6.87[/tex]

since [tex]log_{3}3[/tex] is 1, we get

X=[tex]log_{3}6.87[/tex]

Using a calculator, we find that x is about 1.75

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