16-01-2015
Mathematics

contestada

solve for x 27^(2x+4)=1/9^(x-46)

Respuesta :

16-01-2015

[tex]27^{2x+4}=(\frac{1}{9})^{x-46} \\ (3^3)^{2x+4}=(3^{-2})^{x-46} \\ 3^{3(2x+4)}=3^{-2(x-46)} \\ 3^{6x+12}=3^{-2x+92} \\ 6x+12=-2x+92 \\ 6x+2x=92-12 \\ 8x=80 \\ x=10[/tex]

Answer Link

Otras preguntas

What types of materials are common in lake

Was the social and financial cost of absolute monarchies was low

HI IM having A REALLY REALLY hard time with this problem and i desperately need help can someone please help me!

Choose the most concise revision: a. This memo is to inform you that the team has compiled the basic fundamentals of the accounting procedure, and we have note

In a study where the researchers told some subjects they were receiving alcohol and other subjects they were not receiving alcohol and then either gave them alc

Without graphing, determine whether the system of linear equations has one solution, infinitely many solutions, or no solution. Explain your reasoning. y=5x-9 a

If tonya needed to buy 9 bottles of soda for a party in which 12 people attended, how many bottles of soda will she need to buy for a party in which 8 people ar

How does Kennedy’s use of the phrase “Ich bin ein Berliner" affect the meaning of his speech?

Does the neutron have a charge? explain your answer.

You observe a hockey puck of mass 0.12 kg, traveling across the ice at speed 18.3 m/sec. The interaction of the puck and the ice results in a frictional force