1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
dem82 [27]
3 years ago
6

Find the derivative of f(x) = negative 9 divided by x at x = 6.

Mathematics
2 answers:
Anettt [7]3 years ago
5 0
First, find f(x+h) = (-9/(x+h)) ... just substitue (x+h) for every x.

Then plug in f(x+h) and f(x) in the difference quotient formula.

Lim/h->0\ [f(x+h) - f(x)]/h

Or, [(-9/ (x+h)) - -9/x] /h
Or, [(-9/ (x+h)) + 9/x]/h
Or, [(-9x + 9x + 9h)/ x(x+h)] / h
Or, [9h / (x^2 + hx)]/h .............................................. add like terms
Or, ( 9h / (x^2 + hx)) * h/1 .................divide by 7 is equivalent to multiply by 1/7
Or, 9/ (x^2 + hx) .................................cancle out the h
Or, 9/ x^2 ........................................... plug in 0 for h

Now, the function asks for x=6, so we plug in 6 for every x
so, the limit = 9/ 6^2 = 9/36 = 1/4.

o-na [289]3 years ago
4 0
F(x) = -9/x f(6) = -9/6 f(6) = -3/2 f(6) = -1.5 The function of f(x) = -9 / x at x = 6 is equal to -3 / 2 or -1.5. Hope that helps!
You might be interested in
Im stuck on this one​
azamat
What????????????????????????????
5 0
3 years ago
How many grams in a pound
lbvjy [14]

There are 453.5 grams in 1 pound


I hope that's help and have a great night !

5 0
3 years ago
Read 2 more answers
The scores on the entrance exam at a well-known, exclusive law school are normally distributed with a mean score of 200 and a st
ruslelena [56]

Answer:

the lowest passing score would be x = 298

Step-by-step explanation:

School wishes that only 2.5 percent of students taking test pass

We are given

mean= 200,

standard deviation = 50

We need to find x

The area under the curve can be found by:

2.5 % = 0.025

So, 1- 0.025 = 0.975

We need to find the value of z for which the answer is 0.975

Looking at the z-score table, the value of z is: 1.96

Now, using the formula:

z = x - mean/standard deviation

1.96 = x - 200/50

=> 1.96 * 50 = x-200

98 = x - 200

=> x = 200+98

x = 298

So, the lowest passing score would be x = 298

8 0
3 years ago
Hell please and thank you !!!!
Wittaler [7]

Answer:

2.7

Step-by-step explanation:

x^2=5.8*1.3=7.54

x=V7.54=2.7

4 0
2 years ago
Read 2 more answers
LOOK AT PIC PLSS TYYYYY
slava [35]

Answer:

2.52 lbs=40.32 oz

Step-by-step explanation:

I used the mass formula and I even searched it.

2.52 lbs=40.32 oz

Hope this helps! :)

7 0
2 years ago
Other questions:
  • I chose the wrong screenshots for the last one, sorry about that!
    6·2 answers
  • I need an explanation and answer ty
    14·1 answer
  • What is the relationship between fractions and decimals?
    6·1 answer
  • Please help me with this ,
    5·1 answer
  • Bob businessman offers credit at 20% interest per year. APR?%
    15·2 answers
  • The percentage of high school students who drink and drive stood at 17.5% at the beginning of 2001 and declined linearly to 10.3
    11·1 answer
  • Can someone please help with number 10? Will give brainliest to best answer!
    5·1 answer
  • The question is there
    7·2 answers
  • 1. 6x - 29 = 115<br> 2. 3y - 1 = 29<br> 3. 4z - 32 = 36<br><br> find x, y, and z
    10·1 answer
  • What is sin 45°?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!