guad guad
  • 13-02-2015
  • Mathematics
contestada

simplify each equation, then solve. 1) log 2 128=x

Respuesta :

luana
luana luana
  • 13-02-2015
[tex]l[tex]log_{2}128=x\\\\ Formula\ for\ log:\\ log_{a}c=b\ \ \ =>\ a^b=c\\\\ 2^x=128\\\\ 2^x=2^7\\\\ x=7\\\\Solution\ is\ x=7.[/tex][/tex]
Answer Link
Аноним Аноним
  • 13-02-2015
[tex]\log _{ 2 }{ 128 } =x\\ \\ \log _{ 2 }{ \left( { 2 }^{ 7 } \right) } =x\\ \\ 7\cdot \log _{ 2 }{ 2 } =x[/tex]

[tex]\\ \\ 7\cdot 1=x\\ \\ \therefore \quad x=7[/tex]
Answer Link

Otras preguntas

Which identifies all the integer solutions of the equation |x| = 12? A. 0 only B. 12 and –12 C. –12 only D. 12 only
Which feature of government does Montesquieu argue for in his book De l’Esprit des Lois (Spirit of Laws)?
Haw many years ago was 300BC
why would citizens in colonies prefer indirect rule over direct rule?
how many square corners does a pentagon have
a penny dropped into a wishing well reaches the bottom in 1.5 seconds. what was the velocity at impact?
1Anne is riding a horse which is tied to a pole with a 3.5 m piece of rope and her friend Laura is riding a donkey which is 2 m from the same center point. Calc
Does german shepherds have enemies?
Mai borrowed $12,000 at 5% interest for 6 years. What was the total interest Mai paid? $
what is the type of material that doesn't allow heat to be conducted easily