Robm23 Robm23
  • 13-02-2019
  • Mathematics
contestada

If f(x)=3-2x and g(x)= 1/x+5, What is the value of (f/g)(8)

Respuesta :

gmany
gmany gmany
  • 13-02-2019

Answer:

[tex]\large\boxed{\left(\dfrac{f}{g}\right)(8)=-169}[/tex]

Step-by-step explanation:

[tex]\left(\dfrac{f}{g}\right)(x)=\dfrac{f(x)}{g(x)}\\\\f(x)=3-2x,\ g(x)=\dfrac{1}{x+5}\\\\\text{Substitute:}\\\\\left(\dfrac{f}{g}\right)(x)=\dfrac{3-2x}{\frac{1}{x+5}}=(3-2x)\left(\dfrac{x+5}{1}\right)=(3-2x)(x+5)\\\\\left(\dfrac{f}{g}\right)(8)\to\text{put x = 8 to the equation of a function}\ \left(\dfrac{f}{g}\right)(x):\\\\\left(\dfrac{f}{g}\right)(8)=(3-2\cdot8)(8+5)=(3-16)(13)=(-13)(13)=-169[/tex]

Answer Link

Otras preguntas

(10y^3+20y^2+55y)/5y
Historians of china have traditionally dated the beginning of Chinese civilization to the founding of the what??
find an equivalent expression without parentheses -(50x-15y+15)=
Can someone use the word delta in a sentence
Prove that (x^5)-(x^2)+2x +3=0 has at least one real root. Prove that x=cosx has at least one solution.
How were life forms affected by the rise in atmospheric oxygen levels that began 2.2 billion years ago?
How were life forms affected by the rise in atmospheric oxygen levels that began 2.2 billion years ago?
How were life forms affected by the rise in atmospheric oxygen levels that began 2.2 billion years ago?
Scarcity is the condition of not having enough goods and services to satisfy everyone's?
How were life forms affected by the rise in atmospheric oxygen levels that began 2.2 billion years ago?