Find the solution of the differential equation that satisfies the given initial condition. x ln(x) = y 1 + 8 + y2 y', y(1) = 1.

Answers

Answer 1

Answer:

[tex]\mathbf{((lnx)(2x^2)) -x^2 +39 =(2y^2 +(\dfrac{4}{3})(8+y^2)^{3/2})}[/tex]

Step-by-step explanation:

Given that:

[tex]x In(x) = y( 1+ \sqrt{8+ y^2}) \ } \ \dfrac{dy}{dx}[/tex]

[tex]xln(x) *dx= (y+y \sqrt{(8+y^2}) \ dy[/tex]

[tex]\int xln(x) dx = \int(y+y\sqrt{(8+y^2})) \ dy[/tex]

[tex]\int lnx (x)dx =(\dfrac{y^2}{2} +\dfrac{1}{3}(8+y^2^{)3/2})[/tex]

[tex](lnx \dfrac{x^2}{2})-\int((\dfrac{x^2}{2})\times \dfrac{1}{x} =(\dfrac{y^2}{2} +\dfrac{1}{3}(8+y^2)^{3/2})[/tex]

[tex]((lnx)(\dfrac{x^2}{2}))-\int(\dfrac{x}{2}) =(\dfrac{y^2}{2} +(\dfrac{1}{3})(8+y^2)^{3/2})[/tex]

[tex]((lnx)(\dfrac{x^2}{2}))-(\dfrac{x^2}{4}) +C= (\dfrac{y^2}{2 }+(\dfrac{1}{3})(8+y^2)^{3/2})[/tex]

For  y(1) = 1

[tex]((ln(1))(\dfrac{1^2}{2}))-(\dfrac{1^2}{4}) +C= (\dfrac{1^2}{2 }+(\dfrac{1}{3})(8+1^2)^{3/2})[/tex]

[tex](0)-(\dfrac{1}{4}) +C =(\dfrac{1}{2} +(\dfrac{1}{3})(3)^3)[/tex]

[tex]C=(\dfrac{19}{2}) +(\dfrac{1}{4})[/tex]

[tex]C=\dfrac{39}{4}[/tex]

[tex]((lnx)(\dfrac{x^2}{2}))-(\dfrac{x^2}{4}) +(\dfrac{39}{4}) = (\dfrac{y^2}{2} +(\dfrac{1}{3})(8+y^2)^{3/2})[/tex]

[tex]\mathbf{((lnx)(2x^2)) -x^2 +39 =(2y^2 +(\dfrac{4}{3})(8+y^2)^{3/2})}[/tex]


Related Questions

please answer fast! teehee

Answers

Answer:

y = 9

Step-by-step explanation:

∆KLH is congruent to ∆FLH by the Hypotenuse-Leg Congruence Theorem.

Therefore,

m<KHL = m<FHL

Thus:

6y = 4y + 18

6y - 4y = 18 (subtraction property of equality)

2y = 18

y = 18/2 (division property of equality)

y = 9

Answer: teeheeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee

Step-by-step explanation:

Yo u soooo cool wannaaaaaa be be friends itsa song LOL..........

I don’t get this please help me

Answers

Answer:#1: 1225

#2: 1149

Step-by-step explanation:

Hope this helps! :) ❤❤❤

Graph the line
y = - 4/3x + 3

I need help with the steps.

Answers

Start by putting a dot at (0,3). Then you just need to go four down and three right from that dot and put another dot. Just repeat that a couple times to make sure it is straight, and connect the dots with a line. You can also go four up and three left from the (0,3) for the other side of the axis.

Step-by-step explanation:

First look at the y-intercept or b (in this case it is 3)

The y-intercept tells us where the line touches in the graph on the Y-axis

(In this case you move up in the Y-axis 3 times)

Put a dot on 3 (in the y-axis)

Now from 3 on the y-axis go down -4 and right 3 since the slope is -4/3

(Slope = rise/run -4 is rise [but since it the 4 is a -4 you go down] and 3 is run)

every time you finish going down -4 and right 3 place a dot on it and repeat if you think you can draw a line then stop and draw the line and you are finished

Answer: (This is in Desmos.com)

hellooooooooooooooooooooooooooooooooooo

Answers

Answer:

Step-by-step explanation:

Hi

What is the correct proportion to find 22% of 86?

Answers

Answer:

its either 18.92

or 25.58%

but I believe it is 18.92 I may be wrong though

Which expression is equivalent to X
(13),
Ο Ο Ο Ο
4
x9
13
x 6

Answers

Answer:

x

Step-by-step explanation:

[tex]\huge \bigg( {x}^{ \frac{2}{3} } \bigg) ^{ \frac{3}{2} } \\\\

\huge= {x}^{ \frac{2}{3} \times \frac{3}{2} } \\\\

\huge= {x}^{ \frac{6}{6} } \\\\\huge= x \\ [/tex]

whats in improper fraction equal to 9 and 3/5

Answers

Answer:

48/5

Step-by-step explanation:

Answer: 48/5

9 multiplied by 5 is 45. Add three to get 48

Find the value of 542x92+542

Answers

the answer is 50,406
mark me brainliest if the answer is correct, thank you in advance :)
Well, according to PEMDAS, you do multiplication first so 542x92= 49,864+542 which equals 50,406

3. Simplify the following inequalities.

Answers

Answer:

7x+7 > 23-x

group like terms

7x+ x > 23-7

8x > 16

we divide both side by

8x > 16

8 8

so 8 cancelled out 8 living

x > 16

8

x > 2

8

we

PLEASE HELP!!
What is the sum of the measures of the exterior angles of this triangle?

Answers

282

Step-by-step explanation:

C=180-112=68

A=180-68-51=61

sum of exterior angles=112+119+51=282

A bank received a check for two thousand, six hundred nine dollars and seventy -five cents. How is this written in expanded notation.

Answers

THIS WOULD BE 2,695 there u go

60 POINTS PLEASE SEND ME A COMPLETED COPY OF THIS "linear functions worksheet: child's growth and prosperity

Answers

Answer:

give it to me now and then I'll do it

Answer:

Step-by-step explanation:

Choose the one alternative that best completes the statement or answers the question

Answers

Answer:

whaat are you talking about coward

Ten thousand place is how many times the value of thousand

Answers

Answer:

thousands

Step-by-step explanation:

it is in the thousands places

-z=8
Evaluate and solve for the variable

Answers

Answer:

z=-8

Step-by-step explanation:

Answer:

isnt there supposed to be more numbers?

Step-by-step explanation:

Simplify the following polynomial expression (8x^2-7x+2)+(3x^2-9x-6) help fasttt!!!!!!!!!!!!!

Answers

Answer:

11x^2 - 16x +4

Step-by-step explanation:

In order to simplify, add like terms

(8x^2-7x+2)+(3x^2-9x-6)

8x^2 + 3x^2 = 11x^2

-7x + -9x = -16x

-6 + 2 = 4

now the equation is 11x^2 - 16x +4

What is 4 2/3 divided by 7

Answers

Answer:

0.66666666666

Make into improper fraction
4 2/3 = 14/3
7 = 7/1
Divide fraction = multiply by reciprocal
14/3 * 1/7 = 14/21 = 4/7
The answer is 4/7

Which of the following represents the greatest percent of change?

A. Boots that were originally priced at $90 are on sale for $63
B. A baby that weighed 7 pounds at birth now weighs 10 pounds
C. A bracelet that costs $12 to make is sold for $28
D. A savings account increased from $500 to $600 in one year

Answers

Answer:

c

Step-by-step explanation:

a. 63(new) - 90(old) =  -27 / 90 = 0.4285*100  = 42.9%

b. 10(new) - 7(old) = 3 / 7 = -0.3*100 = -30 = 30%

c. 28(new) - 12(old) = 14 / 12 = 1.166 * 100 = 116.6%

d. 600(new) - 500(old) = 100 / 500 = 0.2 = 20%

The greatest percentage change will be a bracelet that costs $12 to make and is sold for $28 as 133.33% thus option (C) is correct.

What is the percentage?

The percentage is defined as a given amount in every hundred. It is a fraction with 100 as the denominator percentage is represented by the one symbol %.

The percentage is also called the indicating hundredths. Thus, 2% is two-hundredth, which means 2%=2/100=0.02.

As per the given,

% change = (change)/original x 100

A): (90 - 63)/90 x 100 = 30%

B): (10 - 7)/10 x 100 = 30%

C); (28 - 12)/12 x 100 = 133.33%

D):(600 - 500)/500 x 100 = 20%

Hence "The greatest percentage change will be a bracelet that costs $12 to make and is sold for $28 as 133.33%".

For more about the percentage,

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Please find the percent of change rounding to the nearest tenth of a percent

Answers

Answer:

the answer is decreases

∠A and \angle B∠B are supplementary angles. If m\angle A=(3x-23)^{\circ}∠A=(3x−23)

and m\angle B=(2x-12)^{\circ}∠B=(2x−12)

, then find the measure of \angle B∠B.
Is 43

Answers

Answer:

74

Step-by-step explanation:

did school asignment

The measurement of ∠ B = 74°

What are Supplementary angles?

Two Angles are Supplementary when they add up to 180 degrees.

Given that ∠ A and ∠ B are Supplementary and ∠ A = (3x−23),

∠ B = (2x−12)

According to definition of Supplementary,

∠ A + ∠ B = 180°

(3x−23) + (2x−12) = 180°

5x - 35 = 180°

5x = 180° + 35

5x = 215°

x = 43°

Putting x = 43° in  ∠ B = (2x−12)

∠ B = (2*43−12)

∠ B = 86 - 12

∠ B = 74°

Hence, The measurement of ∠ B = 74°

For more references on Supplementary angles, click;

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3. If Ted is making monthly payments of $77 on a loan of $4,000 for 5 years;
approximately what percent interest is he paying?
$

Answers

answer: about 1.93%
hope this helps

The percent of interest is he paying is,

⇒ R = 4.62%

What is mean by Percentage?

A number or ratio that can be expressed as a fraction of 100 or a relative value indicating hundredth part of any quantity is called percentage.

To Calculate the percent of a number , divide the number by whole number and multiply by 100.

We have to given that;

Ted is making monthly payments of $77 on a loan of $4,000 for 5 years.

Hence, Yearly payments to pay is,

⇒ 12 × 77

⇒ $924

Hence, We get;

⇒ Interest = PRT/ 100

⇒ 924 = 4000 × R × 5 / 100

⇒ 92400 / 20,000 = R

⇒ R = 4.62%

Thus, The percent of interest is he paying is,

⇒ R = 4.62%

Learn more about the percent visit:

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Activity
Rylee shopped at a clothing store, where she spent $36.50 plus 8% tax. Then, she spent $25 to refuel her car at the gas station. Finally, she bought groceries worth $23.50. At the grocery checkout, she handed over a coupon for a 20% discount on her purchase.

Complete the following steps to help Rylee find the net change to her banking account balance.

Part A
Use decimal numbers to write an expression that represents the net change in Rylee’s bank account balance after paying for her purchase at the clothing store.

Part B
Write an expression that represents the net change in Rylee’s bank account balance after paying for fuel at the gas station.

Part C
Use decimal numbers to write an expression that represents the net change in Rylee’s bank account balance after paying for groceries.

Part D
Finally, use decimal numbers to write an expression that represents the net change in Rylee’s bank account balance for her entire shopping trip. Use your answers from parts A through C to guide you.

Part E
Simplify the expression in part D to find the net change in Rylee’s bank account balance. Express your answer as a decimal number.

Answers

Answer: The net change to her banking account balance is $83.22.

Step-by-step explanation:

Hi to answer this question we have to analyze the information given:

She spent $36.50 plus 8% tax.  ( to calculate the tax amount we have to multiply the cost by the percentage in decimal form)

36.50 x (8/100) =$2.92 (value of tax)

Adding to the original cost

36.50+2.92 = $39.42

Then, she spent $25 to refuel her car at the gas station.

39.42 +25 = $64.42

She bought groceries worth $23.50. At the grocery checkout, she handed over a coupon for a 20% discount on her purchase

23.50 x (20/100) = 4.7 (amount of discount)

Subtracting to the purchase

23.50 -4.7= $18.8

Finally, adding to the total cost.

64.42 +18.8 = $83.22

Find the sum of 5x+20 and the opposite.write an equivalent expression in standard form justify each step

Answers

Answer:

Therefore, the sum of 5x+20 and the opposite is: 0Thus, the equivalent expression is:

         [tex]5x+20-\left(5x+20\right)=0[/tex]

Step-by-step explanation:

We know that the opposite is the additive inverse. For example, 8+(−8)=0 where 0 is the identity for addition.

Given that we have to compute the sum of 5x+20 and the opposite.

Given

5x+20opposite of 5x+20 = -(5x+20)

so

The sum of 5x+20 and the opposite:

5x+20 + -(5x+20)

Distribute the Negative Sign

[tex]=5x+20+-1\left(5x+20\right)[/tex]

[tex]=5x+20+-1\left(5x\right)+\left(-1\right)\left(20\right)[/tex]

[tex]=5x+20+-5x+-20[/tex]

Combine Like Terms

[tex]=5x+20+-5x+-20[/tex]

[tex]=\left(5x+-5x\right)+\left(20+-20\right)[/tex]

[tex]=0+0[/tex]

[tex]=0[/tex]

Therefore, the sum of 5x+20 and the opposite is: 0Thus, the equivalent expression is:

         [tex]5x+20-\left(5x+20\right)=0[/tex]

What numbers lie between 42 square root

Answers

Answer:

√ 42  lies between  6  and  7

Step-by-step explanation:

We know that  √ 42  will lie between  √ 36  and  √ 49

And  √ 36 = 6  ;  √ 49 = 7

Hence we can be sure that  √ 42  lies between 6  and  7

Help!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

D is the correct answer

Step-by-step explanation:

hope it helps

have a great day

:)

Suppose two $20 bills, three $10 bills, one $5 bill, and seven $1 bills are placed in a bag. If you were to pull a bill at random, what is the expected value for the amount chosen

Answers

Answer:

Assuming that the $1 bill was pulled at random, then the expected value of the amount chosen is [tex]\frac{7}{13}[/tex].

Step-by-step explanation:

From the given question, the bag contains;

$1 bill = 7

$5 bill = 1

$10 bill = 3

$20 bill = 2

Total number of bills in the bag = 13

Pulling a bill at random, the bills would have an expected value as follows:

For $1 bill, the expected value = [tex]\frac{7}{13}[/tex]

For $5 bill, expected value = [tex]\frac{1}{13}[/tex]

For $10 bill, expected value = [tex]\frac{3}{13}[/tex]

For $20 bill, the expected value = [tex]\frac{2}{13}[/tex]

Assuming that the $1 bill was pulled at random, then the expected value of the amount chosen is [tex]\frac{7}{13}[/tex].

The amount of gasoline at a gas station change from 58432.4 gallons to 56495.2 gallons from 2 o'clock p.m. to 4 o'clock p.m. what rational number represents the average change in amount of gasoline per hour

Answers

Answer:

thanks 4 the points

Step-by-step explanation:

Answer:

4

Step-by-step explanation:

PLEASEEEEE IM DESPITE Xd-
Anyone
Will mark branliest

Answers

Answer:

B 8.42 seconds

Step-by-step explanation:

421 in 50 seconds

421//50

8.42 seconds

Hope this helps!

Most likely B, because if you divide 421 and 50, you will get the inches per sec.

Find the 64th term of the arithmetic sequence 2, -3, -8, ...

Answers

Answer:

-496

Step-by-step explanation:

minus 5

Write an Equivalent Expression by combining like terms for 2x+3x+y+2y

Answers

Answer:

5x+3y

Step-by-step explanation:

2x+3x=5x since they have the same variable.

y+2y

1y+2y u can put a 1 so that would be 3y

5x+3y

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