arianamedina200 arianamedina200
  • 25-08-2017
  • Mathematics
contestada

PLEASE HELP IVE BEEN STUCK ON THIS QUESTION FOR 20 MINS IDK :(

PLEASE HELP IVE BEEN STUCK ON THIS QUESTION FOR 20 MINS IDK class=
Relax

Respuesta :

apologiabiology
apologiabiology apologiabiology
  • 25-08-2017
remember
[tex]\frac{x^m}{x^n}=x^{m-n}[/tex]
and
if [tex]a^b=a^c[/tex] where a=a, then b=c
so
[tex]\frac{7^9}{7^n}=7^{9-n}=7^3[/tex]
[tex]7^{9-n}=7^3[/tex]
so
9-n=3
-n=-6
n=6

answer is 6
Answer Link

Otras preguntas

What number is 33 1/3% of the positive difference between 25% of 60 and 75% of 16?
The probability of Roger winning the tournament, given that Stephan wins, is 0. The probability of Stephan winning the tournament, given that Roger wins, is 0.
how do I make h the subject of this formula please?t = gh / 10
What Is Iambic Tetrameter?
True or false Baklava would be found in the entree section of a restaurant menu
how can I use quarrelling in a sentence?
Mr. Anders wants to put a fence around his backyard. His backyard is rectangular. The lengths of the sides are 75 yards , 45 yards, 75 yards, and 45 yards. How
do rainforests have seasons?  if do What are they?
explain how the suns energy powers the earth (including heating our atmosphere, oceans, and photosynthesis)
solve for m  p=2m+2w       what does m=