angelabey02 angelabey02
  • 17-12-2018
  • Mathematics
contestada

Solve: log2(x-4) = 4 A) 4 B) 8 C) 12 D) 20

Respuesta :

jimrgrant1 jimrgrant1
  • 17-12-2018

Answer:

D

Step-by-step explanation:

using the rule of logarithms

• [tex]log_{b}[/tex] x = n ⇔ x = [tex]b^{n}[/tex]

[tex]log_{2}[/tex](x - 4) = 4

⇒ x - 4 = [tex]2^{4}[/tex] = 16 ( add 4 to both sides )

x = 20 → D



Answer Link
kraetzkatelynd
kraetzkatelynd kraetzkatelynd
  • 17-12-2018

Answer:

D) 20

Step-by-step explanation:


Answer Link

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