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

Which of the following represents the factored form of f(x) = x3 − 81x? f(x) = x(x − 9)2 f(x) = (x + 9)(x − 9) f(x) = x(x + 9)(x − 9) f(x) = x(x2 − 9)
Solve the Equation 2x-3=14 -x+3y=-6
Which sentence correct
A 1.50-liter sample of dry air in a cylinder exerts a pressure of 3.0 atmospheres at a temperature of 25°C. Without change in temperature, a piston is moved in
What does this mean: Work hard and try hard-Persistent
what is the mean of the following data value 53,71,89,10,62
Writers organize their writings to make an impact on their readers. In Muir's writing about the Calypso Borealis, he places opposing views of his journey close
what is the volume of a regular pyramid having a base area of 24 in.² and a height of 6 inches?
if line p is (2x+40)°and line q is (3x-85) what is the value of x​
If an object moves faster and faster, what must change?