JulieEast
JulieEast JulieEast
  • 21-03-2018
  • Mathematics
contestada

A function is shown. f(x) = -3*4^x What is the value of x when f(x) = −48?

Respuesta :

morgano2020
morgano2020 morgano2020
  • 27-03-2018
-3•4^x=-48
+3
-45=4^x

that's all I know
Answer Link
ambergilmore007 ambergilmore007
  • 17-03-2020

Answer:

x=2

Step-by-step explanation:

Step 1: Flip the equation.

−3(4x)=−48

Step 2: Divide both sides by -3.

−3(4x)

−3

=

−48

−3

4x=16

Step 3: Solve Exponent.

4x=16

log(4x)=log(16)(Take log of both sides)

x*(log(4))=log(16)

x=

log(16)

log(4)

x=2

Answer Link

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