Find all critical points of the given plane autonomous system. (Enter your answers as a comma-separated list.) x′ = x 12 − x − 1 2 y y′ = y(20 − y − x)

Answers

Answer 1

Answer:

the critical points are (0,0) , (0, 20), (12, 0) , (4,16)

Step-by-step explanation:

To consider the autonomous system

[tex]x' =x (12 -x - \dfrac{1}{2})[/tex]

[tex]y' = y( 20 -y - x)[/tex]

The critical points of the above system can be derived by replacing x' = o and y' = 0.

i.e.

[tex]x' =x (12 -x - \dfrac{y}{2}) = 0[/tex]

[tex]\dfrac{x}{2} (24 -2x - y) = 0[/tex]

x = 0 or 24 - 2x - y = 0     ----- (1)

Also

[tex]y' = y( 20-y-x) = 0[/tex]

y( 20 -y - x) = 0

y = 0 or 20 - y - x = 0  -----   (2)

By solving (1) and (2);

we get x = 4 and y = 16

Suppose x = 0 from (2)

y = 20

Also;

if y = 0 from (1)

x = 12

Thus, the critical points are (0,0) , (0, 20), (12, 0) , (4,16)


Related Questions

Please answer this is my last assignment for the semester

Answers

Answer:

It's C

Step-by-step explanation:

Multiply the length by the width and you are going to do that by multiplying 4x by 2x and 4 and also multiply -6 by 2x and 4. and then you simplify and you should get the equation C

Wen Naey started mkkdle sehool, she was 60 inches tall, When she started high school, she was 65 inches tal. V/h
was the iNercent ehange n her height?
O6Nrcent crease
O9INcent icrease
010Nercent crease
O0Nereent crease

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The first one is the answer

Express 76.5% as a decimal and a fraction

Answers

as a decimal it’s 0.765 and as a fraction is 76.5/100

The head of maintenance at XYZ Rent-A-Car believes that the mean number of miles between services is 3408 miles, with a variance of 249,001. If he is correct, what is the probability that the mean of a sample of 36 cars would be less than 3245 miles

Answers

Answer:

The probability that the mean of a sample of 36 cars would be less than 3245 miles

P(X⁻≤3245) = 0.975

Step-by-step explanation:

Step(i):-

The mean number of miles between services

                   μ= 3408 miles  

The Variance of miles between services

                σ² = 249,001

                σ = √249,001 = 499

Let 'X' be a random variable in a normal distribution

Given sample size 'n' =36

Step(ii):-

           [tex]Z = \frac{x^{-}-mean }{\frac{S.D}{\sqrt{n} } }[/tex]

          Z = -163/83.16 = 1.96

The probability that the mean of a sample of 36 cars would be less than 3245 miles

P(X⁻≤3245)  =   P(Z≤1.96)

                   =   0.5 + A(1.96)

                   =  0.5 + 0.4750

                  =   0.975

Final answer:-

The probability that the mean of a sample of 36 cars would be less than 3245 miles

P(X⁻≤3245) =0.975

           

         

         

Add. Express each sum in simplest form : 5/9+1/2

Answers

Answer:

19 /18  or 1 1/18

Step-by-step explanation:

first you need to make the denominators the same

10/18+9/18

then add the numerations together to get

19/18 or 1 1/18

I hoped this helped :)

Find the probability that the number of both cubes is greater than 4.

Answers

Answer:

B

Step-by-step explanation:

Ava plays on the softball team at her school. The team won 8 of its first 12 games. At that rate, how many games will Ava's team win if it plays 60 games in all?

Answers

Answer:

She wins 40 games

Step-by-step explanation:

I'm not the best at explaining but 5x12=60 so then we multiply 8 by 5 aswell and bam we have 40.

HELP FAST WILL MARK BRAINLYEST

Answers

Answer:

It should be -7

Step-by-step explanation:

since it starts from D to B in the number line

I thing 7 is the answer

y = 2(x - 2)2 + 1
10
What is the
a. Vertex
b. Axls of Symmetry line: x =
c.y.Intercepts:(

Answers

Answer:

Step-by-step explanation:

Vertex

A plumber charges $80 for a house call and $25 per hour for his services. Which of the following is a linear model of his charges.

Answers

Answer:bals

Step-by-step explanation:25(number of hours worked) +80$ for initial charge

Answer:

25x+80

The number of hours is x for services

a rental car company charges drivers a flat fee to rent a car plus $0.25 for each mile they drive. If a drivers pays $100 drives 160 miles , which equation can he use to find his total cost y in terms of the number of miles driven ?

Answers

ANSWER

y = 100 + 0.25(160) - equation

y = 140 - if you needed the answer

Write the equation for the relationship 19

Answers

Answer:

Did you mess up the question? This doesn't make any sense. If you post a new question I can help! Otherwise uhhh x=9*2 ???

Find f(-2) for f(x) = 3 • 2x

Answers

Answer:

A

Step-by-step explanation:

2^-2 is -4 I believe and then multiplied by three would be -12

HELP PLEASE.............

Answers

I'm pretty sure it is the fourth answer.

Write the equation of the line that is parallel to the original equation and passes through the point
(12, 6).

Answers

Answer:

12

Step-by-step explanation:

12 your welcomeeeeee

what is the product in simplest form? -8/9 times 5/6 All the ANSWERS:
-1
-13/15
-20/27
-1/5

Answers

C -20/27 because 5x-8= -40 and 9x6= 54 and u divide both numbers by two and get C

please help UwU
also hope your day is going GREAT >w

Answers

Answer:

B is the answer for the question

B IS YOUR ANSWER LOL.

PLEASE ANSWER THIS ONE!!!

Answers

Answer:

6:5

Step-by-step explanation:

i think this is it as I square rooted it and go that

HELP HELP HELP HELP HELP

Answers

Answer:

+80=0 at the end of the thing

Step-by-step explanation:

Answer:

81

Step-by-step explanation:

-9+9= 18

9x9= 81

they have to use the same number, but one is added and the other is multiplied

The color reference provided by the automotive manufacture is 44.21%. Does this known value match the measured value at the 95% confidence level

Answers

Answer:

This known value does not match the measured value at the 95% confidence level.

The 95% confidence interval for value is calculated as 42.92 to 43.78%,

Step-by-step explanation:

The complete question is:

Police have a hit-and-run case and need to identify the brand of red auto paint. The percentage of iron oxide, which gives paint its red color, was determined to be 43.35 ± 0.33% by one method of analysis using five measurements. The color reference provide by the automotive manufacture is 44.21%. What can you conclude about whether the sample matches the reference at a 95% confidence level?

Student's t test is used to compare the two values .

Here n=5

Degrees of freedom =ν= n-1= 5-1=4

The value from t- table for 4 d.f at 95 % confidence interval is 2.776

The test statistic is

x`± t ∝/2(v). S/√n

43.35 ± (2.776)(0.33)/√5

= 43.35 ± 0.43

= 43.78, 42.92

Here the 95% confidence interval for μ calculated is 42.92 to 43.78%, where as color reference provided by the automotive manufacture is 44.21%.

This known value does not match the measured value at the 95% confidence level.

What should I write

Answers

Answer:

4x

Step-by-step explanation:

You multiply the two numbers together:

Top left, purple tile: 3x(x) = 3x^2

Top right, pink tile: 4(x) = 4x

Bottom left, yellow tile: 3x(2) = 6x

Bottom right, blue tile: 4(2) = 8

Basically u multiply the variable above it and the variable at its left

Answer:
4x

Explanation:
x + 4 = 4x

Gianna cuts a ribbon into equal pieces as shown below. She uses 4 pieces of the ribbon for a project. What fraction of the ribbon does Gianna use for the project? Explain how you found your answer.

Answers

1/4

ONE of the FOUR total pieces was used.

8z - 13 = 5z + 8 The Zs are variables ​

Answers

43 is the answer for the whole equation

Zelda rode her bike at a steady rate of 12 miles per hour for 3

Answers

Answer:

36miles

Step-by-step explanation:

Given parameters:

Rate  = 12mph

Time  = 3hr

Unknown:

Distance = ?

Solution:

The given rate amount is the speed. Speed is the distance divided by the time.

It is mathematically expressed as:

         Speed  = [tex]\frac{distance}{time}[/tex]  

    Distance  = Speed x time

    Distance  = 12 x 3  = 36miles

HELP!!!! Read the following story carefully, and then complete the activities that follow.

"Good-bye, Mom," Tino cried as he rushed out the door. Tino had his new fishing pole with him and was anxious to try it out.

Tino Kanaha (kan' ah hah) was a Hawaiian boy. He had just turned twelve the day before and had received the fishing pole as a gift from his father.

Tino's house was about a half mile from the cliff overlooking the leeward side of Maui. Many times Tino had climbed down to the rocks below and looked for seashells while his father fished for aku.

"Now it's my turn," thought Tino as he scurried out onto one of the rocks, "and I get to do it all by myself!"

"Aku, here I come!" yelled Tino excitedly as he cast his bait into the surf.

An hour later, Tino heard someone call his name. He looked up and saw his good friend, Kona. "Have you caught anything?" Kona yelled.

"Oh, hi, Kona," Tino said disappointedly. "Wait for me, and I'll be right up."

As Tino reeled in his line, he noticed the waves were much bigger than they had been before. "The wind is stronger, too, " thought Tino as he glanced at the darkening sky.

"We'd better hurry home," Tino said to Kona as he reached the top of the hill. The two boys ran as quickly as they could. They even took the short cut through the sugar cane field to save time.

Kona raced into his yard and, without stopping, he yelled, "Good-bye, Tino! I'll see you tomorrow!"

The first big drops of rain began to fall as Tino reached the front door of his house.

"Oh, I'm glad you're home!" Mrs. Kanaha said. "It is beginning to rain very hard!"

"The storm must be the reason the fish weren't biting," Tino said as he put his fishing pole into the rack on the porch, "but I'll try again tomorrow."



Give two details that are clues that Tino did not catch any fish.

Answers

Detail 1: In the second to last paragraph Tito states that “the storm must be the reason the fish weren’t biting” indicating that the he didn’t catch any fish

Detail 2: When Tito’s friend Mona asks “Have you caught anything ?” Tito doesn’t answer the question and only says “Oh hi Kona” which shows that he didn’t catch a fish yet
Clue #1 - “Oh, hi, Kona,” Tino said DISAPPOINTEDLY. “Wait for me, and I’ll be right up.”

Clue #2- “The storm must be the reason THE FISH WERENT BITING,” Toni said as he put his fishing pole into the rack on the porch, “but I’ll try again tomorrow.”

No bother to find or locateNope not found nope

Answers

That’s Um..ah okay then

Need help please
I haven a picture and seems like no one wants to help I need it please I will mark you the brainiest

Answers

Answer:p

pn gv=0753vc

Step-by-step explanation:

Fill in the blanks for the explicit formula.
-8, 22, 52, 82, ...

Answers

It is 30. F(30) = -8 + 30(n-1)

Answer:

it is 30

Step-by-step explanation:

i took the test so please mark me the brainlest

19 + 11 - 12² ÷ 3 (12 - 9) · 11)) - 7 =


Use PEMDAS for this.

Also it's a made up question

Answers

PEMDAS = Parentheses, Exponents, Multiplication, Division, Addition, Subtraction

First, subtract the numbers in the parentheses, then multiply by 11.

(12 - 9) = (3)

3 x 11 = 33

19 + 11 - 12^2 ÷ 3(33) - 7

Now, just multiply 33 by 3, and then square 12 (12 x 12).

19 + 11 - 144 ÷ 99 - 7

Now, you can divide 144 by 99, this is an infinite number, so..

144 ÷ 99 = 1.455

19 + 11 - 1.455 - 7

Finally add, then subtract.

30 - 1.455 - 7

28.545 - 7

The final answer is 21.545.

In metrics, the meter is the standard unit of: mass distance volume length

Answers

Answer: Length because A unit of length refers to any arbitrarily chosen and accepted reference standard for measurement of length.
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