Consider the function f(x)=x−5ln(x), 1/5≤x≤10.
The absolute maximum value is =

and this occurs at x equals =

The absolute minimum value is =

and this occurs at x equals =

Answers

Answer 1

f(x) = x - 5 ln(x)

Get the derivative:

f'(x) = 1 - 5/x

Find the critical points:

• f'(x) = 1 - 5/x = 0   ->   5/x = 1   ->   x = 5

• f'(x) is undefined for x = 0, but that's outside the domain of f(x)

Get the second derivative:

f''(x) = 5/x ^2

Check the sign of the second derivative at the critical point x = 5:

f'' (5) = 5/5^2 = 5/25 = 1/5 > 0

Since the second derivative is positive at this point, this means x = 5 is a local minimum.

Check the value of f(x) at the critical point as well as the endpoints of the given domain:

f (5) = 5 - 5 ln(5) ≈ -3.407

f (1/5) = 1/5 - 5 ln(1/5) ≈ 1.809

f (10) = 10 - 5 ln(10) ≈ -1.513

So we have

• absolute maximum = 1/5 - 5 ln(1/5) at x = 1/5

• absolute minimum = 5 - 5 ln(5) at x = 5

Answer 2

The absolute maximum value is  f(5)=5−5ln(5), and this occurs at x equals 5

The absolute minimum value is  f(1/5)= 1/5−5ln(1/5), and this occurs at x equals 1/5

Given the function f(x)=x−5ln(x),

We are to find the absolute minimum and maximum value of the function

At the turning point f'(x) = x - 5ln(x)

f'(x) = 1 - 5/x

0 = 1 - 5/x

-5/x = -1

-x = -5

x = 5

Find the second derivative of the function;

f''(x) = -5/x²

Substitute the value of x = 5 into the second derivative function to have:

f''(5) = -5/5² = 1/5

Since f''(5) = 1/5 < 0, this is the local maximum and the point x = 5 is the absolute minimum

The absolute maximum value is  f(5)=5−5ln(5), and this occurs at x equals 5

The absolute minimum value is  f(1/5)= 1/5−5ln(1/5), and this occurs at x equals 1/5

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Related Questions

what is the best estimate for 5 and 382?

a. 900
b. 500
c. 2,000
d. 3,000

Answers

Answer:

I think choose b. 500

Calculate the area between the two circles, as shown if the smaller radius is 3 and the larger radius is 11

Answers

9514 1404 393

Answer:

  112π ≈ 351.9 square units

Step-by-step explanation:

Assuming the smaller circle is wholly contained within the larger circle, the difference of their areas is ...

  ΔA = (π·11²) -(π·3²) = π·(121 -9) = 112π ≈ 351.9 . . . square units

__

The formula for the area of a circle is ...

  A = πr²

The sum of a number and 20 is equal to 25 plus 5. What is the number? * 25 puntos a. 15 b. 20 c. 10

Answers

Answer:

I believe your answer is 10! :)

A) lThere is a wooden storage unit inside of the garage. It is shaped like a rectangular prism
with the following dimensions: length = 3 feet, width = 5.5 feet and height = 2.5 feet.
What is the volume of the storage unit? Show your work

Answers

Answer: 41.25

Step-by-step explanation:

Volume = Length x Width x Height

Volume = 3 x 5.5 x 2.5

Volume = 41.25

Mark me as brainliest!!

Have a nice day

URGENT NEED HELP CLICK TO SEE

Answers

Answer:

D

Step-by-step explanation:

Can I have Brainliest? I hope this helped and have a nice day!!!

Work:

64 / 2 = 32

3/4 / 2 = 3/8

3/4 = 6/8

6/8 / 2 = 3/8

Final answer 32 3/8

A national manufacturer of ball bearings is experimenting with two different processes for producing precision ball bearings. It is important that the diameters be as close as possible to an industry standard. The output from each process is sampled and the average error from the industry standard is measured in millimeters. The results are presented next.

Process A Process B
Sample mean 2.0 3.0
Standard deviation 1.0 0.5
Sample size 12 14

The researcher is interested in determining whether there is evidence that the two processes yield different average errors. The population standard deviations are unknown but are assumed equal. If What is the decision if we use 1% level of significance?

a. Fail to reject the null hypothesis and conclude the means are different.
b. Reject the null hypothesis and conclude the means are different.
c. Fail to reject the null hypothesis and conclude the means are the same.
d. Reject the null hypothesis and conclude the means are the same.

Answers

Answer:

b). Reject the null hypothesis and conclude the means are different.

Step-by-step explanation:

A hypothesis is characterized as null when the data/statistics display that there is no distinction between the particular features of the groups. As per the details provided, the decision would be to 'reject/deny the null hypothesis and deduce that the means of the processes are different.' This shows that there is no association among the variables due to the distinction in the means of the two processes and other data provided. Thus, option b is the correct answer.

Jason drove 8 4/5 miles to a subway station. He then 15 /6 miles by taxi to attend a meeting. How many total miles did he travel?

Answers

Answer:

Option A: (23 + 29/30) miles

Step-by-step explanation:

Here we just need to add two mixed numbers.

(8 + 4/5) miles and (15 + 1/6) miles.

To add these, we just separate between the whole part and the fraction part:

(8 + 4/5) miles + (15 + 1/6) miles

= (8 + 4/5 + 15 + 1/6) miles

= (8 + 15 + 4/5 + 1/6) miles

= (23 + 4/5 + 1/6) miles

Now we need to find a common multiple between 6 and 5.

So, only analyzing the fraction part of the sum, we can rewrite:

4/5 + 1/6

= 4/5*(6/6) + 1/6*(5/5)

(notice that we are multiplying both numbers by one, so we do not change the expression's value)

= (4*6)/(5*6) + (1*5)/(6*5)

= 24/30 + 5/30

So now both fractions have the same denominator.

Then, replacing that in the sum equation we get:

(23 + 4/5 + 1/6) miles =  (23 + 24/30 + 5/30) miles

= (23 + 29/30) miles

Then the correct option is option A.

what is
1/3 x (15+6)

Answers

Answer:

First, you do 15+6 (because of the parentheses)

You get 21

then you have to do 1/3 times 21 and you get 7

Answer:

7

Step-by-step explanation:

Using BODMAS which stands for:

(Bracket, of, Division, Multiplication, Addition and Subtraction)

We first treat the bracket

  (15+6)=21

We then treat the division

(but it is already reduced to its lowest terms therefore no need, but if you like you can reduce it to a decimal though)

[tex]\frac{1}{3}[/tex]

Then we move onto the multiplication which is the last part

[tex]\frac{1}{3}[/tex] ×21= [tex]\frac{21}{3}[/tex] =7

Find the m2.
O a. m Q = 30 degrees
O b.mxQ = 60 degrees
O c. m Q = 70 degrees
O d. m2Q = 75 degrees

Answers

9514 1404 393

Answer:

  d. m∠Q = 75 degrees

Step-by-step explanation:

The sum of the angles in a triangle is 180°. This triangle is marked to show it is an isosceles triangle, so the two base angles have the same measure.

  ∠P +∠Q +∠R = 180°

  x° +(2x +15)° +(2x +15)° = 180°

  5x = 150 . . . . . . . . . . . . . . . . . . . divide by °, subtract 30

  x = 30 . . . . . . . . . . . . . . . . divide by 5

  m∠Q = (2x +15)° = (2(30) +15)°

  m∠Q = 75°

Samantha is comparing scooter prices with two different DC scooter companies. With the UBER scooters, the equation c = 1.80m gives the relationship between m, the number of minutes per ride, and the total cost, in dollars. With the LYET scooters, the cost of 5 minutes is $3.75 and the cost of 10 minutes is $7.50. If Samantha rides for 12 minutes, how much money would she save by renting the less expensive scooter? Explain your reasoning. ​

Answers

Answer:

yes!

Step-by-step explanation:

Select all the equations that are equivalent

Answers

Answer: all equal n=6

1st one

2nd one

3rd one

5th one

4(2n+1)=52

4=52-8n

n=6

hope it helps  

stay safe love u

btw can i get brainliest

Help plz:)))I’ll mark u Brainliest

Answers

Answer:

= 110 g AgCl

Step-by-step explanation:

NaCl  +  Ag(NO3)  →   AgCl  +  NaNO3

         ↓                               ↑  

        mol           →           mol

      NaCl                         AgCl

[tex]\frac{45 g NaCl }{} \frac{1 mol NaCl}{57.44 g NaCl} \frac{1 mol AgCl}{1 mol NaCl } \frac{143.87 g AgCl}{1 mol AgCl} == 110 g AgCl[/tex]

find the length of a segment indicated. Round your answer to the nearest tenth if necessary. NO LINKS. ​

Answers

9514 1404 393

Answer:

  8.  C) 24.2

  9.  A) 8.1

Step-by-step explanation:

8. The radius is shown as being 7.8 +4.3 = 12.1, so the diameter x is ...

  d = 2r

  x = 2(12.1) = 24.2

__

9. The unknown leg (y) of the right triangle can be found from the Pythagorean theorem.

  y² +11.7² = 12.5² . . . . . the radius is half the diameter

  y = √(156.25 -136.89) = √19.36 = 4.4

Then the segment of interest is ...

  x + y = 12.5

  x = 12.5 -4.4 = 8.1

Answer:

the length of a segment indicated.

Work out the mean for the data set below: 5, 3, 3, 6, 2, 5, 2, 4, 7 Give your answer as a fraction in its simplest form.

Answers

Answer:

4 1/9

Step-by-step explanation:

Add all of them together. you get 37. Then divide them by how many numbers. You get 4.111 repeating. I then just turned that into a fraction and got 4 1/9

Donnie is packing for a
camping trip. He plans to bring 2 pairs
of shorts and 4 t-shirts. How many
different outfit combinations can he
make?
(No links please :D)

Answers

Answer:

8

Step-by-step explanation:

4x2=8

Given that P(B) = 0.4 and P(AB) = 0.25, what must the P(A and B) = ?
0.100
0.160
0.410
1.000

Answers

The answer is c have a good day

Help guys plzzzz I’ll part you brainlist !!!!

Answers

Answer:

> is the answer because 10 × X > 80

Okay the answer is >

Help pls I’ll give extra points

Answers

Answer:

Step-by-step explanation:

5 fractions with denominator of 1 between 0 and 1/14

Answers

Answer:

Are there options to choose from?

Step-by-step explanation:

Nigel, Gina, and Kamal bought dog supplies.
Each person spent between $15 and $20.

Nigel bought 4 items.
Gina bought 5 items.
Kamal bought 2 items.

The prices of the items are given below. Drag items to each box to show what each person could have bought.

PLEASE HELP I BEG YOU

Answers

you didnt put the prices below

Answer:

5 items: 1 dog bone, 3 water bowls, 1 collar

4 Items: 3 Water bowls, 1 Box Of Dog Food

2 items: 1 box of dog food, 1 collar

Which statement is the best reason that the author includes conversations with the dog in the book Travels with Charley? A. It shows that a dog really is a man’s best friend. B. This dog is unusually responsive to people. C. It presents an alternative way for the author to show his thoughts. D. The author cannot find any people to talk to.

Answers

Answer its b because im right

Step-by-step explanation:

Answer:

b

Step-by-step explanation:

May some one please answer this for me, if u are right i will give u brainliest

Answers

Answer:

b. 14x+4y

Step-by-step explanation:

The perimeter is determined by two times the length plus two times the width.

We will use the formula P = 2L+2W:

P = 2L+2W

P = 2(5x-y)+2(2x+3y)

P = (10x-2y)+(4x+6y)

P = 14x+4y

What is the answer?

Answers

Answer:

A

Step-by-step explanation:

2+3=5, 5+3=8, 8+3=11. 2x3=6, 5x3=15, 8x3=24, 11x3=33

Answer:

A

Step-by-step explanation:

Proportional is where everything will match

so we have 2x3=6 5x3=15 8x3=24 11x3=33

This works because it continues the same line of multiplication (x3).

But like B,  you start with 4,4=16 which works, but now you have 5x4=21, which will not work because 5x4 will never equal 21

Your answer is A

45 basketball players participate in a tournament there are a total of 15 teams that will play write and solve an equation of number players on each team​

Answers

Answer:

3

Step-by-step explanation:

45 players / 15 teams = 3 people per team

Classify each triangle by side length and angle measure.

Answers

Answer:

Below.

Step-by-step explanation:

1. Isosceles.

2. Scalene

3. Equilateral.

4. Right triangle.

6in
4IN
The rectangle above is being enlarged
by a scale factor on 3.5.
Show your work to find the new
dimensions.

Answers

the new dimensions are 6(3.5) by 4(3.5) which are 21 by 14

if x=5, then 3x+4x-15 equals what

Answers

Answer: 20

Step-by-step explanation:

Data: x=5 and 3x+4x-15

First step, Insert the 5 and multiply

3(5)+4(5)-15=15+20-15

Second step, add 15+20=35

Final step, subtract 35-15=20

The answer is 20

I hope this helps!

someone please help!! will reward brainliest!

Answers

Add 7 to both sides seems like the best next step.

If not then add 9.

Tell me if i'm wrong

Answer:

Add 7 to both sides

I think that's the answer

What is an example of a regular polygon?​

Answers

Answer:A few examples of regular polygons are a triangle, quadrilateral, pentagon, hexagon, heptagon, and a decagon.

Silvester ran around the field,
turning at each of the three backstops.
What was the average number of degrees
he turned at each of the three corners?

Answers

it is 76 ooooooooooooof

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