what is the formula for finding circumference

Answers

Answer 1

C=2 πr which is the formula for circumference


Answer 2
Circumference = 2• pie•Radius

Related Questions

Solve for m.

3m+7/2=−2m+5/2

A.-1

B.-1/5

C.6

D.6/5

Answers

To solve this we must isolate x which involves having the variables on one side and the numbers on the other.

First add 2m to both sides

3m+7/2=-2m+5/2

5m+7/2=5/2

Then we subtract 7/2 from both sides

5m+7/2=5/2

5m=-1

Finally we divide both sides by 5

5m/5=-1/5

Our final answer is -1/5

So the answer is B

Hope this helps!

You need at least $635 to go on a trip to Washington, DC. You already have $75 saved for the trip. You decide to save an additional $65 per week. Which inequality shows the number of weeks, w, you need to save to be able to go on the trip?


Answers

75+65w is greater than or equal to (>_) 365

75+65w≥635

This is the inequality because you already saved 75 so you just add it to the amount you save after a certain amount of weeks. It needs to be more than 635 for the the trip.

round to the nearest thousandth 1.2983

Answers

The nearest thousandth is 1.298. You get this because you don't round the 3 up, it is too small. If it was 5 or higher, then you would round up. Is this helpful? I hope it is.

The given decimal number rounded to the nearest thousandth is 1.298.

What is the rounding off numbers?

Rounding a number means the process of making a number simpler such that its value remains close to what it was. The result obtained after rounding off a number is less accurate, but easier to use. While rounding a number, we consider the place value of digits in a number.

The given decimal number is 1.2983.

To the nearest thousandth:

In the place ten thousandth, number 3 is there

Here, 1.298

Therefore, the given decimal number rounded to the nearest thousandth is 1.298.

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The Fall Festival charges $0.75 per ticket for the rides. Kendall bought 18 tickets for rides and spent a total of $33.50 at the festival. She only spent her money on ride tickets and admission into the festival. The price of admission is the same for everyone. Use y to represent the total cost and x to represent the number of ride tickets.

(a) Define your variables.

(b) Write a linear equation to calculate the cost for anyone who only pays for festival admission and rides.

(c) Explain your answer to Part B.

Answers

(a)

Let's assume

y is total cost

x is number of ride tickets

(b)

Since, this is linear relationship

so, we can assume equation as

[tex]y=mx+b[/tex]

The Fall Festival charges $0.75 per ticket for the rides

so,

[tex]m=0.75[/tex]

we can plug it

[tex]y=0.75x+b[/tex]

Kendall bought 18 tickets for rides and spent a total of $33.50 at the festival

so, we have

at x=18 , y=33.50

we can use it to find b

[tex]33.5=0.75*18+b[/tex]

now, we can solve for b

[tex]b=20[/tex]

we can plug it back

and we get

[tex]y=0.75x+20[/tex]

(c)

we got

[tex]y=0.75x+20[/tex]

here ,

y is the cost for anyone who only pays for festival admission and rides

x is number of admission

so, our equation will give total cost


What is -45 degrees 5 times colder

Answers

do -45 times 5, and you will get -225

Which inverse operation would be used to verify the following equation?
102 ÷ 3 = 34

Answers

Yes you are correct

For this case we have:

The division given by:

102 ÷ 3 = 34

The dividend is 102 The divisor is 3 The quotient is 34

To verify its result we use multiplication as a reverse operation, that is:

We multiply the quotient by the divisor and its result must be the dividend.

So:

[tex](34) (3) = 102\\[/tex]

Answer:

Multiplication, [tex](34) (3) = 102[/tex]

GEOMETRY HELP! What is the equation of a line that passes through the point (1, 8) and is perpendicular to the line whose equation is y=x/2+3 ?

Answers

A perpendicular line has the negative reciprocal slope of the given line.

The slope of the given line is x/2, which can be written as 1/2x

The negative reciprocal of 1/2 would be -2


The equation for a line is written as y = mx +b, where m is the slope and b is the y-intercept.

We already have the slope ( -2)

So we can solve for b by replacing y x and m with the slope and the point given:

8 = -2(1) +b

8 = -2 + b

b = 10


The equation would be y = -2x + 10


idk if this is right.. but im gonna ask it anyway. whats 4÷202?

Answers

202/4= 101/2= 50.5
the answer to the question

−3 1/3 ÷ 9 pllllllllllllllllllllllllllllllllllllllllllllllllll

Answers

[tex]-\frac{10}{27}[/tex]  hope this helps :)

A store hands out 900 reward cards. Customers scan their cards in the store to find out what reward they receive. The probability that a customer receives a $25 gift card is 112. How many customers receive a $25 gift card?

Answers

if the probability is 1/12, 75 people will receive a $25 gift card

Answer: 75 customers

Step-by-step explanation:

hey! so for this question you have to cross multiply and divide.

1/12 = 900/1 so 1 times 900 is 900 then divide that by 12 which is 75.

Hope this helps!!

Pira drives 825 miles to California. The trip takes him 17 hours. He uses 38 gallons of gas on the trip, which costs him $125. Find is speed. Find is gas mileage. Find the unit price he paid for gas.

Answers

Speed = Distance /  time:

Speed = 825 miles / 17 hours

Speed = 48.529 miles per hour. (Round the answer as needed).


Gas mileage = miles traveled  / gallons used

Gas mileage = 825 miles / 38 gallons = 21.71 miles per gallon (Round answer as needed).


Unit rate of gas = Total money spend /  gallons bought:

Unit rate of gas = $125 / 38 gallons = $3.289 per gallon.

Answer:

[tex]Speed = 48.53mph[/tex]

[tex]Gas.Mileage = 27.7 mpg[/tex]

[tex]Unit.Price = 3.29/gallon[/tex]

Step-by-step explanation:

Great question, it is always good to ask away and get rid of any doubts that you may be having.

In order to find the Speed we need to divide the amount of total miles in the trip to California by the amount of time that it took.

[tex]Speed = \frac{Miles}{Hours}[/tex]

[tex]Speed = \frac{825.miles}{17.hours}[/tex]

[tex]Speed = 48.53mph[/tex]

Next we can calculate the Gas Mileage by dividing the amount of total miles  by the amount of gallons of gas that the trip wasted.

[tex]Gas.Mileage = \frac{Miles}{Gallon}[/tex]

[tex]Gas.Mileage = \frac{825.miles}{38.gallons}[/tex]

[tex]Gas.Mileage = 27.7 mpg[/tex]

Finally, we can calculate the Unit Price by dividing the total amount of money wasted in the trip by the amount of gallons used in that trip.

[tex]Unit.Price = \frac{Total}{Gallons}[/tex]

[tex]Unit.Price = \frac{125}{38.gallons}[/tex]

[tex]Unit.Price = 3.29/gallon[/tex]

I hope this answered your question. If you have any more questions feel free to ask away at Brainly.


What is the equation of the circle shown in the graph?

(x – 3)2 + y2 = 4
(x + 3)² + y² = 2
x² + (y + 3)² = 4
x² + (y – 3)² = 2

The answer is C

Answers

Answer:

c is correct thank you

Step-by-step explanation:

got it correct on edg.


The  equation of the circle shown in the graph will be (x - 3)² + (y)² = 4

How to calculate the equation of a circle

The standard equation of a circle is given as:

(x - a)² + (y- b)² = r²

where:

(a, b) is the centre

r is the radius of the circle

Assume the centre of the circle is (3, 0) and the radius of 2

Substitute to have:

(x - 3)² + (y-0)² = 2²

(x - 3)² + (y)² = 4

Hence the  equation of the circle shown in the graph will be (x - 3)² + (y)² = 4

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4 times the sum of 12 and 26

Answers

It would be 4(12 + 6). The answer to this is 7.

Hope that helps :)

26 + 12 = 38 38
x 4
====. 512 is the answer
512

A^3+4a^2+4a factor completely

Answers

So firstly, factor out the GCF, or greatest common factor. To find the GCF, list the factors of every term and the greatest one they all share is their GCF. In this case, the GCF is "a":

[tex]a(a^2+4a+4)[/tex]

Next, we are going to apply the square of binomials rule in this situation, which is [tex](x+y)(x+y)=x^2+2xy+y^2[/tex] In this case:

[tex]a^2+4a+4=(a+2)(a+2)\\\\a(a+2)(a+2)[/tex]

Your final answer is [tex]a(a+2)(a+2)[/tex]

A hybrid car gets 45 miles per gallon. At that rate, how much gas would it take to travel across country, a distance of about 2600 miles

Answers

2600 divided by 45 equals 57.7 repeating or rounding up 58

To travel 2600 miles in a hybrid car with a fuel efficiency of 45 mpg, it would require approximately 57.78 gallons of gas.

To calculate the amount of gas needed for a hybrid car to travel 2600 miles with a fuel efficiency of 45 miles per gallon (mpg), you can use the formula:

Divide the total distance by the fuel efficiency: 2600 miles \/ 45 mpg.This gives the total gallons of gas needed: ~57.78 gallons.

So, it would take approximately 57.78 gallons of gas to travel across the country in a hybrid car with a fuel efficiency of 45 mpg.

Stacie is a resident at the medical facility where you work. You are asked to chart the amount of solid food that she consumes. For the noon meal, today she ate 1/2 of a 3-ounce serving of meatloaf, 3/4 of her 3-ounce serving of mashed potatoes, and 1/3 of a 2-ounce serving of green beans. How many ounces of solid food did Stacie consume? Round final answer to two decimal places.

Answers

Remark

The general formula is fraction * solid food = amount

Total amount = 1/2 * 3 oz + 3/4 * 3 oz + 1/3 * 2 oz

Total amount = 3/2 oz + (9/4) oz + 2/3 oz

The lowest common denominator of  2 4 and 3 = 12

Total amount = 3*6/2*6 + 9*3/4*3 + 2*4/3*4

Total amount = 18/12 + 27/12 + 8/12

Total amount = 53/12 = 4 5/12 <<< Answer oz of food.

4.42 oz of food <<<< Answer

marcus's favorite casserole recipe requires 3 eggs and makes 6 servings. Marcus will modify the recipe by using 5 eggs and increasing all other ingridients in the recipe proportionally. what is the total number of servings the modified recipe will make?

Answers

The modified recipe will make 10 servings.
eggs 3 5
servings 6 x
cross multiply and divide to solve for x
(6•5) / 3 = 10

The modified recipe will make a total of 10 servings.

what is the total number of servings the modified recipe will make?

Since Marcus is using 5 eggs in the modified recipe instead of 3, we can calculate the ratio as follows:

Ratio = (Number of eggs in modified recipe) / (Number of eggs in original recipe)

Ratio = 5 eggs / 3 eggs

Next, we need to apply this ratio to the number of servings in the original recipe. Since all other ingredients are being increased proportionally, the number of servings will change accordingly.

Total Servings in Modified Recipe = (Number of servings in original recipe) * Ratio

Given that the original recipe makes 6 servings, we can substitute the values:

Total Servings in Modified Recipe = 6 servings * (5 eggs / 3 eggs)

Total Servings in Modified Recipe = 6 * (5/3)

Total Servings in Modified Recipe = 10

Therefore, the modified recipe will make a total of 10 servings.

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How much wood $400 be worth after 11 years if it were invested at 4% interest compounded monthly? (Use the formula below and round your answer to the nearest cent.) A(t)=P(1+r/n)^nt

Answers

Here we are given the formula for compound interest as :

[tex]A=P(1+\frac{r}{n})^{nt}[/tex]

Here

A= Amount

P=Principal

r=rate of interest

n=number of times interest is compounded per year

t=time(years)

So we are given

P= $400

r=4% or 0.04

t= 11 years

n= 12

Plugging these values in the formula for compound interest we have,

[tex]A=400(1+\frac{0.04}{12})^{12*11}[/tex]

A= $620.6286

Amount = $620.6

Answer: The final amount after 11 years will be $620.6 .

To find the value of $400 invested at 4% interest compounded monthly for 11 years, use the compound interest formula A(t) = P(1 + r/n)^(nt) and solve for A(t). After calculations, the amount comes to approximately $660.44 when rounded to the nearest cent.

To calculate the future value of $400 invested at 4% interest compounded monthly over 11 years, we can use the compound interest formula provided: A(t) = P(1 + r/n)^(nt). In this formula, P represents the principal amount ($400), r is the annual interest rate (0.04), n is the number of times interest is compounded per year (12 for monthly compounding), t is the number of years the money is invested (11 years), and A(t) is the amount of money accumulated after t years, including interest.

Using the formula:

Calculate the monthly interest rate: r/n = 0.04/12 = 0.003333...Determine the total number of compounding periods: nt = 12 * 11 = 132.Substitute the values into the formula: A(t) = $400(1 + 0.003333...)¹³².Calculate A(t) to find the future value of the investment.

The calculation is as follows:

A(t) = $400(1 + 0.003333...)¹³²

A(t) = $400(1.003333...)¹³²

A(t) = $400(1.6511)

A(t) = $660.44

After rounding to the nearest cent, $400 invested at 4% interest compounded monthly for 11 years would be worth approximately $660.44.

Can someone please help me

Answers

Hmmmm...... Are you a 6th grader? I remember doing these in 6th grade.

1. Express the ratio in three different ways (grey and white)

-[tex]\frac{2}{5}[/tex]

-[tex]2[/tex] to [tex]5[/tex]

-[tex]2:5[/tex]

2.  *(Integer)*       *(Opposite)*         *(Absolute Value)*                                                                        

         3                        -3                               3

       -4                         4                                4

        8                       -8                                 8

3. Write an expression to represent:

- "A number n divided by 6" = [tex]\frac{n}{6}[/tex] or [tex]n[/tex]÷[tex]6[/tex]

4. Solve. Show your work.

- [tex]27.9+212.5=240.4[/tex]

- [tex]175.5-12.7=162.8[/tex]

5. Shade the blocks

- [tex]975[/tex]÷[tex]6=162.5[/tex]

- [tex]478[/tex]·[tex]38=18,164[/tex]

1. 4 shirt for 32.00

- Rate: [tex]x[/tex]·[tex]32[/tex]        This rule only happens if there are 4 shirts.

- Unit Rate: [tex]\frac{32}{4}=8[/tex]      It cost $8 for every shirt is bought

2. Write every form from illustration.

- Fraction: [tex]\frac{30}{100}=\frac{3}{10}[/tex]

- Decimal: [tex]0.3[/tex]

- Ratio: [tex]30:100[/tex] or [tex]3:10[/tex]

- Percentage: [tex]30[/tex]%

3. What is 50% of 80?

- Your answer is correct

4. Ken grew [tex]\frac{4}{5}[/tex] of an inch last year. Sang grew [tex]\frac{3}{8}[/tex] of an inch. Who grew more and by how much?

- Your answer is correct

5. Complete the table and then graph the coordinates.

- Attachment for this question

tyronne has $60,his sister has $135 ,they get $5 each week ,tyronne saves his money ,while his sister spends hers ,they get additional $10 each week ,in how many weeks will they have the same amount?

Answers

Answer:

In 5 weeks they will have the same amount.

Step-by-step explanation:

1. You have that Tyronne has $60, she gets $5 each week and also gets an additional $10 each week. She saves her money. Therefore, you can write the following expression:

[tex]60+5x+10x\\60+15x[/tex]

Where [tex]x[/tex] is the number of weeks.

2. Her sister has $135, she gets $5 each week and also gets an additional $10 each week, but she spends this money. Therefore:

[tex]135+5x+10x-5x-10x\\135[/tex]

3. If this amounts of money will be equal, you have:

[tex]60+15x=135\\15x=75\\x=5[/tex]

4. Therefore, in 5 weeks they will have the same amount.

Evaluate.



2^−2⋅(12⋅3)−5^3



Enter your answer in the box.

Answers

If ^ was meant to be multiplication, the answer would be -159.

Answer:

The Answer is: -116

(sorry I'm 3 years late...)

Step-by-step explanation:

The fastest recorded Hawaiian lava flow moved at an average speed of 6 miles per hour. The function y=6x describes the distance y the lava moved on average in x hours. Graph the function. Use the graph to estimate how many miles is lava moved after 4.5 hours.

Answers

Okay for this problem you can multiply 6 by 4.5 aand get 27 as your answer.

So 6×4.5=27 miles in 4.5 hours

We need to graph a function and use that graph to estimate how many miles lava moves in 4.5 hours.

The graph and estimations can be seen at the end of the answer.

Let's see how to graph this:

We know that the function is y= 6*x

What we need to do, is find two points in the that belong to the line, to get that, we need to evaluate the function in two points:

if x = 0:

y = 6*0 = 0

Then we have the point (0, 0)

if x = 1:

y = 6*1 = 6

Then we have the point (1, 6)

Now to graph the function, we just need to find these two points and draw a line that connects them.

A graph is shown at the end of the answer.

To estimate the distance that the lava has moved in 4.5 hours, we need to find the value 4.5 in the x-axis, then we draw a vertical line that passes through there.

In the point where this vertical line intersects the graph, we draw a horizontal line.

That horizontal line will intersect the y-axis in the correspondent y-value to x = 4.5

An example of this can be seen in the image below, my estimation is that the lava has moved something near 26 miles.

If you want to learn more, you can read:

https://brainly.com/question/20853486

Which of the following situations represents a linear relationship?
A.
A savings account gains 3 percent in interest annually.

B.
The enrollment at a university has doubled every 5 years since 1980.

C.
An employee is paid $12 for each hour worked.

D.
A company is increasing the volume of a cylindrical container by increasing its radius as the height remains fixed.

Answers

C: an employ is paid $12 for each hour worked


Ricardo is considering the following jobs as summer employment.

If he wants to earn $1,000 this summer working the least amount of hours, which job should he choose?
A. babysitting
B. yard work
C. lifeguarding
D. camp counselor

Answers

Answer:

I would say you lifeGuarding

Step-by-step explanation:

Answer:

Its lifegaurding doing the quiz rn

Step-by-step explanation:

Help Urgent!

Simplify 1 · x - x/1 .

0
1
x

Answers

1·x-x/1     1·x=x

=x-x/1      x/1=x

=x-x

=0

1·x-x/1=0

Answer:

Your answer is 0

Step-by-step explanation:

1 times x and x/1 are the reciprocals of each other and when something is multiplied by its reciprocal the product is always 0


What is the justification for each step in the solution of the equation?

1.) 5x-4/2 = 2x-1
2.) 5x-4 = 2(2x-1)
3.) 5x-4 = 4x - 2
4.) 5x = 4x+2
5.) x = 2

Answers

Step 1 : (5x-4)/2 = 2x-1                     [Given]

Step 2 : ((5x-4)/2) × 2 = 2 × (2x-1)                 [Multiplicative Property of Equality i.e. by multiplying both sides of the equation by same number]

Step 3 : (5x-4) = 4x-2                     [By Distributive Property]

Step 4 : 5x - 4 + 4 = 4x - 2 + 4                     [By addition property of equality i.e.  by adding both sides of the equation by same number]

⇒ 5x = 4x + 2

Step 5 : 5x - 4x = 4x + 2 - 4x                      [By subtraction property of equality i.e.  by subtracting both sides of the equation by same number]

⇒ x = 2

Answer:

Step 1 : (5x-4)/2 = 2x-1                                {Given}

__________________________________________________________

Step 2 : ((5x-4)/2) × 2 = 2 × (2x-1)               {Multiplicative Property}  

__________________________________________________________

Step 3 : (5x-4) = 4x-2                                   {Distributive Property}

__________________________________________________________

Step 4 : 5x - 4 + 4 = 4x - 2 + 4                     {Addition property}

 5x = 4x + 2

__________________________________________________________

Step 5 : 5x - 4x = 4x + 2 - 4x                     {Subtraction property}    

x = 2

Write an expression where you multiply a decimal number by 100. Which direction and how many places does the decimal move?
PLEASE HELP, GIVING 20 POINTS

Answers

2 places to the right, for example 0.01 times 100 is 1

.57 times 100=  57. you moe the decimal 2 places to the right

3m + 9 / n when m is 4 and n is -3

Answers

Substitute the 4 and -3 for m and n in the expression.

3m+9÷n

3(4)+9÷(-3)

Using the rules of PEMDAS, first multiply/divide, then add.

12+9÷(-3)

12+(-3)

9

The final answer is 9.

Jacob drew a regression line for this paired data set

His line passed through (2,10) and (7,18)

What is the equation of Jacobs regression line?

A)y=6.8x+1.6
B)y=1.375x+4.25
C)y=0.625x-4.25
D)y=1.6+6.8

Answers

Answer: [tex]y=1.6x+6.8[/tex]


Step-by-step explanation:

1. The equation of a regression line has the following form:

[tex]y=mx+b[/tex]

Where [tex]m[/tex] is the slope and [tex]b[/tex] is the y-intercept.

2. You need to calculate the slope with the points given in the exercise:

[tex]m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}[/tex]

3. Substitute values:

[tex]m=\frac{18-10}{7-2}[/tex]

[tex]m=\frac{8}{5}=1.6[/tex]

4. Now, you must calculate [tex]b[/tex]:

-Substitute the value of the slope into the equation above.

- Take one of the given points and substitute them into the equation.

Then:

[tex]y=mx+b\\10=(1.6)(2)+b\\b=10-3.2\\b=6.8[/tex]

5. Therefore, the equation is:

[tex]y=1.6x+6.8[/tex]

graph 9x+12y less than or equal to 925

Answers

most likely it would be less than

Other Questions
Which helps enable an oligopoly to form within a market?A) Costs of starting a competing business are too high.B)The government restricts market entry.C) The number of options in a market confuses consumers.D) No competition exists between producers. Read the passage from Sugar Changed the World. A fire was lit in a giant iron cauldron, and the certificates of 2,300 Indians were tossed into the flamesthe first major act of Satyagraha. "I am not property," the Indians were showing. "I am not your victim," they were demonstrating. "I have the power of my conscience," they were proving. The quiet strength of the Indian community shook the South African government. And by June 1914 it gave in; the Black Act was taken off the books. The Indians had insisted that they were not mere workers but were citizensand finally the government could not resist. What is the authors claim in this passage? The Indians' demonstration and act of resistance was a successful strategy to change laws. South African leaders repealed the Black Act because they agreed with the Indians. The Indians tossed their certificates into a cauldron to hide their legal status as property. Satyagraha had more powerful political influence over laws than the government did. can someone help me on this? and please explain on how you do it. Thank you! Voltaire John Locke Baron de Montesquieu Jean-Jacques Rousseau Which statement BEST describes a common theme shared by these philosophers of the Enlightenment? A) They were all French. B) They were all British. C) They all believed in more limited governments. D) They all believed in a federal system of government. what is the value of a3 Solve for a: d=1/4a^2bc Which of the following best explains what happens when consumers think the economy is struggling?1.People spend more, businesses produce less, and unemployment rises.2.People spend more, businesses produce a lot, and unemployment is low.3.People spend less, businesses produce too much, and unemployment is low.4.People spend less, businesses produce less, and unemployment rises. What do comets and asteroids have in common? Check all that apply. They are made of ice. They are orbiting the Sun. They are made of metal debris. They are small compared to the planets. They are at the center of the solar system. In which situation is work not being done? Lupes chili recipe makes 12 servings and uses 12 green peppers and 4 red peppers. Drag green peppers and red peppers into the box to show how many Lupe needs for 9 servings. a freshwater paracemin is placed in salt water. which of the following events is most likely to occue Imani spent half of her weekly allowance playing mini-golf. To earn more money her parents let her wash the car for $4. What is her weekly allowance if she ended with $12? If kara lines up all 3/4 inch button what would be the total if the length? 3.What led to the creation of the Rhode Island Colony? How was the colony governed? Given: PTC mT=120, mC=30 PT=4 Find: PC. How did the newspapers report the Haymarket incident What is the slope of the line whose equation is 12=4x-6y ? which structures allow fungi to obtain nutrients they need for survival? Validate how valence electrons determine the chemical reactivity of an element: give 2 examples of elements with high reactivity and justify your response. when simplifying an expression that contains no parentheses, you always multiply before you divide.True or False