hunterbrod336 hunterbrod336
  • 11-10-2019
  • Mathematics
contestada

If h(2)=7 and h'(2)=-2,find d/dx [(h(x))/(x)]
A. –11/4 B. 2 C. D. 8 E. 16

Respuesta :

steffaniasierrag
steffaniasierrag steffaniasierrag
  • 15-10-2019

Answer:

A. [tex]\frac{-11}{4}[/tex]

Remember that if f and g are functions with [tex]g(x)\neq 0[/tex] then, [tex]\frac{d}{dx}\frac{f(x)}{g(x)}=\frac{f'(x)g(x)-g'(x)f(x)}{g(x)^2}[/tex].

Then,

[tex]\frac{d}{dx}\frac{h(x)}{x}=\frac{h'(x)x-h(x)}{x^2}[/tex]

Evaluating in x=2,

[tex]\frac{h'(2)*2-h(2)}{2^2}=\frac{-4-7}{4}=\frac{-11}{4}[/tex]

Then the answer is A.

Answer Link

Otras preguntas

10 A cone has a volume of 98 cm. The radius of the cone is 5.13 cm. Work out an estimate for the height of the cone.
What is the primary duty of a Panchayat?
Forces act on a box that is initially at rest as shown. Coefficient of friction between the object and the surface is μ=0.1. If the box' mass is 6kg box and if
An arithmetic sequence has first term a The 4th term of the sequence is ka, The 7th term of the sequence is 9a. Find the value of k​
3x^2 - 4x = 7 by factoring
C D 7 The sun is the original source of energy for many of our energy resources Which energy resource does not originate from the sun? * (1 Point) . A. Geother
sea f(x)=3x3+5x, calcule f(5) + f(3)
why fermentation carried temperature in range of 30 to 40°C​
What is the chemical formula for oxygen tetrabromide?
HELPPP HURRYYYYYYYYYY