cbedufbudb cbedufbudb
  • 22-09-2018
  • Mathematics
contestada

What is the value of the expression? 7^-3.7^9/7^-8

A.
7^14


B.
7^2


C.
7^−14


D.
7^−2

Respuesta :

gmany
gmany gmany
  • 22-09-2018

[tex]7^{-3}\cdot\dfrac{7^9}{7^{-8}}=7^{-3}\cdot7^9:7^{-8}=7^{-3+9-(-8)}=7^{14}\\\\Used:\\\\a^n\cdot a^m=a^{n+m}\\\\a^n:a^m=a^{n-m}[/tex]

Answer Link

Otras preguntas

LM has the end points (-2, -4) and (4, -6) what are the coordinates for the midpoint of the LM
7x-7+6(x+1)=6x+3 please help I forget how to solve
what is 4567÷678 +647556
How many terms are there in a geometric series if the first term is 5, the common ratio is 3, and the sum of the series is 65? Sn = a1(1-r^n)/1-r r ≠ 1, where
A yellow bird sat in the birdbath cleaning its feathers. It was enjoying the cool water on a hot day. The bird was unaware of a black cat slowly moving through
6 / x equals 2x / 12
what was czar forced to do
A population of lizards decreases exponentially at a rate of 12.5% per year. What is the equivalent monthly rate to the nearest hundredth of a percent? a. 0.2
The geometric mean of 4 and 9 is _____. A.) 36 B.) 6 C.) 18 D.) 6.5
When did elisabeth abegg start rescuing jews from the holocaust?