A rod with the density sigma(x) = 3 + sin(x) lies on the x-axis between x=0 and x = 3pi/4 find the center of mass of the rod

Answers

Answer 1

Answer:

10.7 grams

Step-by-step explanation:

hey there, again!

this is a similar process the mass is denisty*area HOWEVER keep in mind it's flat so the area is just x deltax while denisity is 3 + sin(x)

mass of rod = integral 0 to 3pi/4 of (3 + sin(x))*x deltax

= integral 0 to 3pi/4 of 3x + xsin(x) deltax

= 0 to 3pi/4 [3/2*x^2 + x(-cos(x)) + sin(x)]

= 10.7 grams


Related Questions

Glimepiride 2mg OD is ordered in a prescription, your pharmacy has 4mg stocks on hand. How much tablet will you give? 2mg​

Answers

At first, 1 to 2 milligrams (mg) once a day. Your doctor may adjust your dose until your blood sugar is controlled. However, the dose is usually not more than 8 mg per day.

If Shane’s average number of jumps completed is greater than one-half, then the eighth graders earn 50 points. If not, the seventh graders earn 50 points. Which grade should be awarded 50 points?

Answers

Answer:4 2/4

Step-by-step explanation:

Hope this helps

Answer:

The 8th Graders.

Step-by-step explanation:

I don't have an explanation but have a good day.

can someone please help me :)

Answers

Answer:

C

Step-by-step explanation:

These pairs are both interior angles and are consecutive because they are divided by a transversal.

the answer is c! i hope this helps!!

PLEASE, I NEED HELP!!!!
MATHS!!!

Answers

Answer:

a

Step-by-step explanation:

What is 6 1/3 - 4 1/9

Answers

Answer:

2 2/9

Step-by-step explanation:

6 1/3 - 4 1/9

1/3: 1x3 3x3= 3/9

1/9: 1x1 9x1= 1/9

3/9 - 1/9 = 2/9

6-4=2

Answer: 2 2/9

Estandieu's cell phone plan includes 4 GB of data. On the 2nd day of his 31 day billing
cycle he received a text message from his service provider that he has already used
16% of his data. At this rate, will he use more than 4 GB this month?

Answers

Answer:78

Step-by-step explanation:

78 that is it I think I have use my cactlatur

A______ is a value, usually in the form of a letter or symbol, that can change or that represents an unknown quantity.

Answers

Answer:

Variable

Step-by-step explanation:

The total amount of money that he had deposited into his account at the end of March is what

Answers

Answer: 1,200.65+ 985.43+ 1,200.23= 3,386.31

Step-by-step explanation:

Multiply.
(2x + 4)(x - 4)

Answers

Answer:

-2x-16

Step-by-step explanation:

so what you are going to do for this is use the distributive property. 2x will be multiplied by x and -4. then you will take 4 and multiply x and -4. then you combine your alike terms. 2x-8x+4x-16 you should get -2x-16

The equivalent expression after multiplying is 2(x² - 2x - 8).

What is an expression?

An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.

Example: 2 + 3x + 4y = 7 is an expression.

We have,

(2x + 4) (x - 4)

Remove the parenthesis.

2x² - 8x + 4x - 16

Add like terms.

2x² - 4x - 16

Taking out the common factor.

2 (x² - 2x - 8)

Thus,

The final expression is 2(x² - 2x - 8).

Learn more about expressions here:

https://brainly.com/question/3118662

#SPJ2

3 (-2x + 1)
What does this equal

Answers

Answer:

-6x+3

Step-by-step explanation:

When you solve this you have to use the distributive property. Your answer would be -6x + 3

A pet store has cats. Here are their weights (in pounds).
8, 5, 14, 12, 7
Find the mean weight of these cats.
If necessary, round your answer to the nearest tenth.

Answers

9.2. Because you add up all of the numbers then divide by how many numbers you have. 8+5+14+12+7= 46 then divide by 5.

Answer: 9.2

Step-by-step explanation: 8+5+14+12+7. = 46

46÷5= 9.2

Problem
What is the slope of the line that contains these points?
***********
slope:

Answers

Answer: -8

Explanation: the formula to find slope is

y1 - y2/x1 - x2

When you substitute the values in this formula, you get

= 36 - 12/8 - 11
= 24/-3
= -8

Therefore, the slope is -8

How do I solve -0.4r=16?

Answers

Answer:

r = -40

Step-by-step explanation:

1. Move constants to the other side of the equation

r = 16/-.04

2. Simplify (by calculator)

You can use a calculator and plug in 16/-.04

r = -40

2. Simplify (by fraction)

You can turn -.4 into a fraction.

-.04 = - 4/10

r = 16/-(4/10)

r = 16*10/-4

r = -40

What number when divided by 10 to the second power yields a quotient of 0.1?

Answers

Answer:

1

Step-by-step explanation:

1 ÷ 10 = 0.1

hope this helped

俄國採購總共工作有關廣告㷣菇菇過各式各樣奴

which is greater 1/8 or 3/20

Answers

Answer:

1/8

Step-by-step explanation:

The sales tax on a used car is​ $102​, and the sales tax rate is ​%5. Find the purchase price ​(the price before taxes are​ added).

Answers

Answer:

.04p = 102

p = 2550

The original price is $2550.

explain why a student who runs 3/4 mile in 6 minutes is faster than a student who runs 1/2 mile in 5 minutes.​

Answers

Answer:

A student who runs 3/4 mile in 6 minutes is faster than a student who runs 1/2 mile in 5 minutes because when you simplify both fractions to per minute, the student who ran 3/4 mile in 6 minutes (1/8 mile per min) ran faster than the student who ran 1/2 mile in 5 minutes (1/10mile in 1 min).

Step-by-step explanation:

[tex]\frac{3/4mile}{6min}[/tex] divided by 6 to get per min =

1/8 mile per min

Find the solution of the system of equations

4x-8y=44
2x+4y=-6

Answers

It is easiest to solve this system by elimination.

4x-8y=44

(2x+4y=-6) -2    ----> multiply the second equation by -2 to create equations where the x coefficients are opposites

     4x-8y=44

(+) -4x-8y=12

-16y=56

y = -7/2

now substitute the value of y into one of the above equations and solve for x

4x – 8(-7/2) = 44

4x + 28 = 44

4x = 16

X = 4

So, the solution is (4, -7/2)

The solution of the  system of equations 4x-8y=44 and 2x+4y=-6is (4, -3.5).

What is Equation?

Two or more expressions with an Equal sign is called as Equation.

The given system of equation is 4x-8y=44 ...(1)

and 2x+4y=-6...(2)

To eliminate y term we have to multiply equation 2 with 2.

4x+8y=-12..(3)

Now add equation 1 and 3.

4x-8y+4x+8y=44-12

8x=32

Divide both sides by 8

x=4

Now plug in x value in equation 1

4(4)-8y=44

16-8y=44

Subtract 16 from both sides

-8y=44-16

-8y=28

Divide both sides by 8

y=-28/8

y=-7/2

=-3.5

Hence, the solution of the  system of equations is (4, -3.5).

To learn more on Equation:

https://brainly.com/question/10413253

#SPJ3

1 An insurance salesperson earns a 4% commission on every piece of automobile insurance that she writes. What is her commission if she sells a policy that has an $890 premium?​

Answers

$890 x .04 = 35.6$ bonus

which 1 is the answer

Answers

Answer:

The second one

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

B is the answer have a great day

if the circumference of a circle is 221cm find the area of the circle​

Answers

Answer:

first find the radius of the circle r^2=221/22/7 then find the area

Answer:

3885.93 cm² or 3886.64 cm²

Step-by-step explanation:

Hello!

Circumference of a Circle: [tex]C = 2\pi r[/tex]

We first have to find the radius. To do so, we can plug in 221 for "C" and isolate "r".

Find the Radius[tex]C = 2\pi r[/tex][tex]221 = 2\pi r[/tex][tex]110.5 = \pi r[/tex][tex]35.1732424233 = r[/tex][tex]r \approx 35.17[/tex]

Area of a Circle: [tex]A = \pi r^2[/tex]

Now that we have the radius, we can use it to find the area using the area formula.

Find the Area[tex]A = \pi r^2[/tex][tex]A = \pi (35.17)^2[/tex][tex]A = \pi(1,236.9289)[/tex][tex]A = 3,885.9267452529[/tex][tex]A \approx 3,885.93[/tex]

The area is approximately 3885.93 cm².

If we used the full number (all decimals given by the calculator), you would have an answer around 3886.64.

can you guys help me pls what is [34 + (9×2)]÷2= what is it pls help​

Answers

Answer:

306

Step-by-step explanation:

The range of the following relation R(3,-2), (1, 2), (-1, -4),(-1, 2)} is {-1, 1, 3) {-1, -1, 1.3} (-4, -2, 2. 2) (-4, -2.2 without it saying brainly plus​

Answers

Answer:

{-4, -2, 2}

Step-by-step explanation:

Given relation

R {(3,-2), (1, 2), (-1, -4),(-1, 2)}

Its range is the set of second values in the pairs

{-2, 2, -4}

In the ascending order

{-4, -2, 2}

Answer:

{-4, -2, 2}

Step-by-step explanation:

The relation is {(3, -2), (1, 2), (-1, -4),(-1, 2)}

The range is all possible y values apart from any duplicates.

y = -2, 2, -4, 2

Removing all duplicates we get.

y = -2, 2, -4

Put them in order.

y = -4, -2, 2

Best of Luck!

Short Response What is the cost of 15 tomatoes?
HOME GROWN VEGETABLES
Cucumbers 6 for $2
Peppers 12 for $9
Tomatoes 6 for $4

Answers

Answer:

60

Step-by-step explanation:

15x4= 60

In a casino in Blackpool there are two slot machines (machine 1 and machine 2): one that pays out 10 % of the time, and one that pays out 20 % of the time. Obviously, you would like to play on the machine that pays out 20% of the time but you do not know which of the two machines is the more generous. You thus adopt the following strategy: you assume initially that the two machines are equally likely to be the generous machine. You then select one of the two machines at random (this turns out to be machine 1) and put a coin into it. Given that you loose that first bet estimate the probability that machine 1 is the more generous of the two machines
What do I know?
What do I want to find out?
What do I expect the answer to be?
How do I go from what I know to what I want to find?
Is the answer consistent with what I expected?

Answers

Answer:

Given that;

a)

2 machines, 1 and 2

Machine 1

pays 10% of times when the machine is generous

So the probability that the machine 1 pays given that its generous is

P (Pays/machine 1 is generous) = 10% = 0.10

Machine 2  

pays 20% of times when its generous

i.e the probability that the machine pays given that its generous is;

P (Pays / machine 2 is generous) = 20% = 0.20

Also we assume there is equal chance of being generous

i.e

P(machine 1 is generous) = P(machine 2 is generous ) = 0.5  

b)

this is to help obtain the probability that machine 1 is generous given that the player loose in the first bet,

i.e P(machine 1 is generous / lost)  

c)

Since, the probability that the machine is generous is 0.5,

it can be said that there is 50% chance that machine 1 is generous when the player loses the first bet

d)

therefore The required probability is calculated as;

P(machine 1 is generous/lost) = p(machine 1 is generous ∩ lost) / p (lost)

= [p(lost/machine 1 is generous) × p(machine 1 is generous)] / [{(1-p(pays/machine 1 is generous)) × p(machine 1 is generous)} + {((1-p(pays/machine 2 is generous)) × p(machine 2 is generous)}]

= [(1 - p(pays/machine 1 is hereous)) × p(machine 1 is generous)] × [(( 1- 0.10) × 0.5) + ((1 - 0.20) × 0.5)]

= ( 1- 0.10) × 0.5) / 0.85

= 0.5294

so  the probability that the player loses the first bet given that the machine is generous is 0.5294

e)

Since the gotten probability that the player loses the first bet given that machine 1 is generous is close to 0.50 then it can be said that the probability is consistent with the expectations.

WILL GIVE BRAINLYIST!!!
Apples are ____% of the total number of fruits.

Answers

Answer:

34%

Step-by-step explanation:

Because out of all ripe fruits is 85% of 5692000.

Help - I need the range for the graph

Answers

The picture is blurry I can’t see

Answer:

4, 11

Step-by-step explanation:

The lowest y value is 0, the highest value is 11

Graph (f(x)+-2((x+3)(x-1). Label the x intercepts, vertex and axxis of symmetry

Answers

Answer: x-intercepts: (-3,0), (1,0)

              vertex: (-1,8)

              axis of symmetry: x = -1

Step-by-step explanation:

A study was conducted on the effects of divorce. Researchers gathered data from a random sample of 5,125 adults and measured quite a few variables, in addition to the explanatory variable of divorce and the response variable of shorter life span. According to a newspaper article summarizing the study, those who divorced were more likely to be less physically active, at an unhealthy weight, and smokers. Those who were married were about 15% more likely to be deceased. What conclusion can we draw from this study? Explain. (5 points) We can infer a cause-and-effect relationship because the sample was selected randomly. We cannot infer a cause-and-effect relationship because we do not have a control group. We can infer a cause-and-effect relationship because multiple variables were included. We cannot infer a cause-and-effect relationship because the treatments imposed were not blocked correctly. We cannot infer a cause-and-effect relationship because treatments were not assigned randomly.

Answers

Answer:

We can infer a cause-and-effect relationship because multiple variables were included.

Step-by-step explanation:

The multiple attributes for the divorced ones are

1) less physically active

2) an unhealthy weight,

3) smokers.

The attribute showing the % of the married is

1) death

So when we compare the two groups married and divorced we see different variables are involved in evaluating the percentage.

This shows a cause and effect involving multiple variables.

In cause and effect one variable is dependent and the other is independent.

The cause is the independent variable and effect is the dependent variable.

CAUSE                          EFFECT

Married                         Death

Divorced                     1) less physically active

                                  2) an unhealthy weight,

                                     3) smokers.

Answer:

We cannot infer a cause-and-effect relationship because treatments were not assigned randomly.

Help pleaseeee!!
-4x - 3x^2 + 6 - 9x^2

Answers

Answer:

The answer would be -12x^2-4x+6

Step-by-step explanation:

This is the simplest form it could get since you subtract the two x^2 together.

Your answer would be -12x ^ 2 - 4x+6
Other Questions
Write an equation for a line with a slope of 2/3 and passes through point (0,4) in slope intercept form. how did the black death influence our world today A train travels 100 miles per minute. One mile is about 1.61 kilometers and 1 hour is 60 minutes.Convert train's speed in kilometers per hour? Arleen has a gift card for a local lawn and garden store. She uses the gift card to rent a tiller for 3 days. It costs $48 per day to rent the tiller. She also buys a rake for $5. Part 1 out of 2 Find the change to the value of her gift card. The value on her gift card decreased by dollars. Rashad hears a loud noise outside. When the sound reaches his ears and travels to the brain to be recognized, which of the following is true about how this happens A) information will only travel to the frontal lobe B) information will first travel to the thamalus and then to wernickes area C) information will travel only to the temporal lobe D) information will first travel to the thalamus and then to the temporal lobe The increased laws placed on the American coonies divided the colonies further as many supported the British. True False Read the excerpt from "PerseusHe waited beside her until the great snake came for itsprey, then he cut its head off just as he had theGorgon's. The headless body dropped back into thewater, Perseus took Andromeda to her parents and asked for her hand, which they gladly gave him.Based on this excerpt, what is most likely true aboutancient Greek marriage rituals?A) The groom had to perform a brave feat beforemarrying the brideB) The groom had to ask the bride's parents forpermission to marry herC) The bride's parents made all the arrangements forthe couple's marriage ceremonyD) The bride's parents chose whom the bride wouldmarry when the girl was very young. Consider the following list of nonfiction text topics. List a purpose for each topic.election resultshousehold carpentry instruction manualtraveling storiesideas to fix traffic congestion Which sentence correctly forms the possessive noun(s)?(A) Kellys and Teters score's are close, but Teters makes her a medal contender.(B) Kelly's and Teter's scores are close, but Teter's makes her a medal contender.(C) Kellys' and Teters' scores are close, but Teters' make her a medal contender.(D) Kellys's and Teters's scores are close, but Teters's make her a medal contender. What is the difference between a chosen investment and one that is passed up is______. 1. Liquidity 2.risk3.rate and return 4.opportunity cost Collisions between molecules cause diffusion. True or false If false then what does cause diffusion What are you willing to sacrifice for the good of others? __________ became governor of Texas under the provisional government.a.James W. Robinsonb.Stephen F. Austinc.Henry Smithd.William B. Travis se context clues to determine the meaning of sagacity as it is used in paragraph 4 of The Tell-Tale Heart. Write your definition here and identify clues that helped you figure out its meaning. Then check the meaning in a dictionary. Who has read the book The Fault in Our stars? Laurie earns $7.50 per hour at the fruit stand plus an extra $2.00 per hour on Sundays. One week in August, she worked on Sunday, Monday, and Wednesday. She worked the same number of hours on Monday and on Wednesday. On Sunday she worked 4 hours. If she earned a total of $83.00 for the week, how many hours did Laurie work on Monday? Enter and solve an equation. This equation has one solution.5(x - 1) + 3x = 7(x + 1)What is the solution? does anybody understand triangle angle theorems?? Which human job is most similar to the role of a producer SPANISH HW PLZ HELP!!!