LaurenMia1
LaurenMia1
24-11-2017
Mathematics
contestada
Help me with this question please?
Respuesta :
jdoe0001
jdoe0001
24-11-2017
[tex]\bf 3^{n+2}-3^n=8\cdot 3^n\implies \boxed{3^n\cdot 3^2}-3^n=8\cdot 3^n \\\\\\ \stackrel{common~factor}{3^n}(3^2-1)=8\cdot 3^n\implies 3^2-1=\cfrac{8\cdot \underline{3^n}}{\underline{3^n}}\implies 3^2-1=8 \\\\\\ 9-1=8\implies 8=8[/tex]
Answer Link
VER TODAS LAS RESPUESTAS ( 42+ )
Otras preguntas
A species of rabbit lives in a meadow where grass plants are readily available during summer months. The rabbits do not stray far from the meadow because the pl
how do I work out 4 + 2 x 2²
Please Help Me Ill give 20 Points + Brainliest Answer
Which of the following is a validation of congruency between two polygons? A.if by applying only rotation you can make them coincide B.if by applying only tra
Which are strong arguments in favor of a jury system? Select all that apply. (2 correct choices) A) The jury system saves the states money and time B) Juries pr
Tara is making spirit ribbons. She has 63 inches of blue ribbon on one spool and 56 inches of orange ribbon on another. If Tara wants all the ribbons to be the
Which of the following methods for learning to use new software includes tips for using the product, updates to download, and information about newer versions a
You're an average, moderately active adult female. therefore, you should consume approximately ___ calories and 69 grams of fat
How much greater is the surface area of the cube?
What mineral is used as a coating for steel?
