A circle has a diameter of 21 meters. What is the circumference of the circle? Use 22/7 for ∏.

Answers

Answer 1

Answer:

66

Step-by-step explanation:

The diameter of the circle is 21. The formula for circumference is pie*radius*2. We don't have the radius but the diameter is just double the radius so just don't multiply by 2. 21 x 22 = 462. 46s divided by 7 is 66. Enjoy your answer :D


Related Questions

Please solve for brainliest.

Answers

Answer: The first four terms are 33/4, 63/8, 15/2, and 57/8.

Step-by-step explanation: To make it easier, turn 8 1/4 into an improper fraction: 33/4. 33/4=66/8. Because the denominator is the same, it’s easier to subtract.

66/8 - 3/8 = 63/8

63/8 - 3/8 = 60/8

60/8 - 3/8 = 57/8

The first 4 terms in the sequence are 66/8, 63/8, 60/8, and 57/8. But we’re not done b/c we need to simplify. That means the first four terms are 33/4, 63/8, 15/2, and 57/8.

.
Solve the equation -8(x + n) = x for n.

Answers

Answer:

-x/8 - x

Step-by-step explanation:

Answer:

n = -(9/8)x

Step-by-step explanation:

Solve for n:

-8(x + n) = x-8x - 8n = x-8n = 9xn = -(9/8)x

-Chetan K

help find circumference pls

Answers

Answer: 62.8

Step-by-step explanation:

2 x 3.14 x 10

Answer:

62.83

Step-by-step explanation:

2 x 3.14 is approx 62.83185 or 62.83

if im wrong let me know please.

Hunter and Christopher were analyzing the graph shown . Both students identified the function to be represented by the, d=13h-75, where d is the amount of money in a checking account and h is the number of hours worked. Hunter explained the equation represented an original amount of $75 that decreased $13 for every hour. Christopher disagreed. He interpreted the equation as a person who was in debt $75 earned $13 every hour.

Answers

Using linear function concepts, it is found that Christopher is correct.

What is a linear function?

A linear function is modeled by:

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

In which:

m is the slope, which is the rate of change, that is, by how much y changes when x changes by 1.b is the y-intercept, which is the value of y when x = 0, and can be interpreted as the initial value.

In this problem, the function is:

[tex]d = 13h - 75[/tex]

Considering the description of the output d as the amount of money in a checking account and of the input h as the number of hours worked, we have that:

For each hour worked, the person earns $13.Considering taxes, the person starts at a debt of $75.

Hence, Christopher is correct.

You can learn more about linear function concepts at https://brainly.com/question/24808124

Need help with homework

Answers

Answer:

5. the other angle has to be 2x because of the other lines being equals so

2x+2x+x-15=180

5x-15=180

5x=195

x=19

6. the other two angle is ajacent to the other two so

3x+17+3x+17+x-9+x-9=360

8x+16=360

8x=344

x=43

7. this ones pretty simple

2x-4+3x+5+2x+11=180

7x+12=180

7x=168

x=24

8. this one to

x+x+4+3x-9=90

5x+5=90

5x=85

x=17

Hope This Helps!!!

2.2,
Write the ratio 1 2/3: 2 2/3 in the simplest form.
,

Answers

Answer:

1:2

Step-by-step explanation:

this would be the answer as 1 2/3: 2 2/3 are the same as 1:2 if you cancel out the 2/3 from both sides.

Answer:

5 : 8

Step-by-step explanation:

1 [tex]\frac{2}{3}[/tex] : 2 [tex]\frac{2}{3}[/tex] ( change both mixed numbers to improper fractions )

= [tex]\frac{5}{3}[/tex] : [tex]\frac{8}{3}[/tex] ( multiply both parts by 3 to eliminate the fractions )

= 5 : 8

nee answer asap plz im stuck
Which point represents the least value on the number line?

Answers

So basically since they are all negative you would go down and count to see which point is higher since it’s a negative and that would be Point H -3 1/2

It takes 20 minutes for a cow to be milked by a milking machine.
How many cows can be milked in 6 hours?

Answers

18 cows can be milked

Answer:

18 cows can be milked in 6 hours

Step-by-step explanation:

hrs.=3

You have $50 in savings. Two months later, you have $80. After the third month, you have $95. You plan to continue to save the same amount each month. What will be in saving after 12 months?

Answers

Answer:

230

Step-by-step explanation:

multiply 12 by 15 and add it onto the 50 to get your answer!

Have a good day!

The water pipe of a house was leaking gallons of water per minute. What is the constant rate of water that is lost per minute according to the graph?

Answers

3 gallons per min. On the graph it shows 6 gallons every 2 minutes so if u simplify its 1/3

Ted is installing lighting in a new block of 12 apartments . He will need 60 metres of cable for each apartment. Each mew spool holds 100 metres of cable . What is smallest number of new spools that Ted will need for his job

Answers

Answer: 8 spools

Step-by-step explanation:

There are 12 apartments, and each apartment will need 60 meters of cable, so 12×60= 720 meters of cable needed.

If each spool only has 100 meters and he needs 720 meters, then 720÷100= 7.2. So he would need to purchase at least 8 spools, and will have 80 meters left over.

(PLEASE HURRY! will award brainliest)
Solve for x. Show your work.

Answers

Answer:

x = 8

Step-by-step explanation:

12 : 36

1 : 3

the distance is 3×, so

x = 26 ÷ 3

= 8

Huang buys 3 shirts that each cost the same amount, a pair of pants that cost $12, and he pays with a $100 bill. Which expression represents the amount of change Huang should receive? Select three options.

100 – (12(3x))
100 – (3x+12)
(100 – 12) – 3x
(100 – 12)(x+x+x)
100 – (x+x+x) – 12

Answers

Answer:

B, C, E

100 - (3x+12)

(100 - 12) - 3x

100 - (x+x+x) - 12

Step-by-step explanation:

they are all saying the same thing, just rearranged and the last one is 3x expanded

Chad used a number line to show the distance from the library to his house and the distance from the library to Kelli's house. How much farther is Chad's house than Kelli's house from the library? A number line from 0 to 1 is divided into 8 equal parts. Library is at 0, Kelli's House is at four-eighths, and Chad's House is at seven-eighths on the number line.

Answers

Chad's house is 3/8 units farther away than Kelly's house.

How to use the number line?

By reading the number line, we can see that:

Library = 0Kelli's House = 4/8Chad's House = 7/8.

These fractions are the positions of each location. We want to find how much farther is Chad's house than Kelli's house from the library, this is given by:

(Chad's house position - library position) - (Kelli's house position - library position)

Writting the fractions, we get:

(7/8 - 0) - (4/8 - 0)  = 3/8

So Chad's house is 3/8 units farther away than Kelly's house.

If you want to learn more about fractions, you can read:

https://brainly.com/question/11562149

Answer: 3/8

Step-by-step explanation: 7/8 -4/8 equals 3/8

Express alphabetically: Double the sum of p and q

Answers

Answer:

that would be:::

2(p+q)

Your family is going on vacation to Disney. It will cost your family $987 to travel there, plus $150 per day for tickets into the park. What is the greatest number of days you can stay at Disney while staying within their $3500 budget?

Answers

Answer:

They can stay 16 days.

Step-by-step explanation:

3500 - 987 = 2,513

2,513 divided by 150 = 16.7

*They can't stay 16.7 days, so you have to round down. Rounding up will go out of their budget.*

Checking answer:

16 x 150 = 2,400

2,400 + 987 = $3,387

- I'm sure this isn't how your teacher wants you to solve it but this is just how I solved it, I hope this helps!

Step-by-step explanation:

Equation: 987 + 150x = 3500

x represents the number of days the family is staying at the park.

Solve.

Subtract 987 from both sides:

[tex]150x = 2513[/tex]

Divide each side by 150:

[tex]x= 16.75[/tex]

16.75 is decreased to 16, it's impossible to stay for 16.75 days.

The family can stay in the park for 16 days.

Julia pays $4.56 to ship a package that weighs 8 ounces. What is the cost to ship one ounce?

Answers

Answer:

1.7543859649. . . . . . . .. .

Answer:

$0.57

Step-by-step explanation:

$4.56/8 = 0.57

so the cost to ship one ounce is $0.57

Please help! 25 points

Answers

Answer: Look at explanation

Step-by-step explanation:

32 = 2 x 2 x 2 x 2 x 2

27 = 3 x 3 x 3

16 = 2 x 2 x 2 x 2

No as 32 can be broken down to 8 and 4 and not just pime and not prime

A 12 sided die is rolled, find the probability of rolling a number greater than 4

Answers

Answer:

probability of rolling a number greater than 4

= 12/4 = 3

p(4) = 3

Mark as brainlest. Hope it helps...

The probability of rolling a number greater than four is 3

please help! thanks in advance!

Answers

It would help to know the answer choices.

But, as an inequality the domain in -5

E Homework: 2.3 Linear Inequalities
Question 14, 2.3.101
Part 1 of 2
Assume that in 2005 consumers used credit and debit cards to pay for 43% of all purchases. This percentage is projected to be 58% in 2011.
(a) Find a linear function that models the data, where x is the year and P(x) is the percentage.
(b) Estimate when this percentage was between 48% and 53%.
(a) P(x) =
(Simplify your answer. Use integers or decimals for any numbers in the expression.)

Answers

Linear functions are functions that change at a constant rate

The linear function that models the data is [tex]P(x) = 0.025x -49.695[/tex]

The equation of the linear function

From the question, we have the following ordered pairs

(x,P(x)) = (2005,43%) and (2011,58%)

Start by calculating the slope (m)

[tex]m = \frac{P(x2) - P(x1)}{x_2 -x_1}[/tex]

So, we have:

[tex]m = \frac{58\% - 43\%}{2011 - 2005}[/tex]

Evaluate the differences

[tex]m = \frac{15\%}{6}[/tex]

Evaluate the quotient

[tex]m = 2.5\%[/tex]

The linear function is then calculated as:

[tex]P(x) = m(x - x_1)+ P(x_1)[/tex]

So, we have:

[tex]P(x) = 2.5\%(x - 2005) + 43\%[/tex]

Rewrite as:

[tex]P(x) = 0.025(x - 2005) + 0.43[/tex]

This gives

[tex]P(x) = 0.025x -50.125 + 0.43[/tex]

[tex]P(x) = 0.025x -49.695[/tex]

Hence, the linear function that models the data is [tex]P(x) = 0.025x -49.695[/tex]

Read more about linear functions at:

https://brainly.com/question/15602982

12. What number is 20% less than 60?

Answers

The amount rupees 48 is 20% less than rupees 60.

Answer:

48

Step-by-step explanation:

Step 1: Multiply 20 by 0.6

20 × 0.612

Step 2: Subtract 12 from 60.

60 - 1248

28 less than twice a number is equal to the number. What is the number?

Answers

Answer:

x = 28

Step-by-step explanation:

2x - 28 = x

-2x         -2x

- 28 = - x

/-x       /-x

28 = x

x = 28

work out the area of the shape

Answers

Answer:

45cm^2

Step-by-step explanation:

we have two shapes in the diagram a square and a triangle so we find the area of each of them and add them together

finding the area of a square

we have area= s×s

area = 7×5

area = 35cm^2

finding the area of a triangle

1/2 ×b×h

1/2×4×5

area = 10cm^2

so we add together

total area = 35+ 10

area = 45cm^2

The area of an 17-cm-wide rectangle is 357 cm2. What is its length?
The length is
cm.

Answers

Given :-

The area of a rectangle is 357 cm².It's breadth is 17cm .

To Find :-

The length of the rectangle.

Solution :-

Here the area of the rectangle is 357cm² . As we know that the area of rectangle is ,

→ Area = length * breadth

On substituting the respective values ,

→ 357 cm² = 17cm * length

→ length = 357cm²/17cm

length = 21cm

Hence the length of the rectangle is 21cm.

I hope this helps.

Refer to the attachment!

A triangle has a perimeter of 66 feet. If the three sides of the triangle are n, 3n+3, and 4n - 9, what is the length of each side?
Separate multiple entries with a comma.

Answers

Answer:

9, 30, 27

Step-by-step explanation:

To find the perimeter, you must add up each side. In this scenario, we know that the perimeter is 66 feet. We also know the sides, which are n, 3n+3 and 4n-9.

So, we must add the sides to get 66 feet.

n+3n+3+4n-9=66

Combine like terms, and solve:

(n+3n+4n)+(3+-9)=66

8n+-6=66

8n-6=66

n=9

So if n=9, we can easily find the value of the other sides.

3(9)+3=30 feet.

4(9)-9=27 feet

So, the sides are 9, 30, and 27 feet (in order).

NEED HELP!!
can someone please help me this work? I am so confused with this math problem. Thank you

Answers

Answer:

SOH CAH TOA

Little triangle first - hypotenuse is 4, now we used this info help us find the opposite.

Opposite & Hypotenuse - Sin

Sin(45) = O/H

Sin(45) = O/4

x 4 both sides, to get Opposite

Opposite = 4 x Sin(45)

= 2 root 2

= 2.8284.......

Big Triangle next,

Opposite is 2.8284......

Y is the adjacent

Opposite & Adjacent - Tan

Tan (30) = O/A

Tan(30) = 2.8/A

x A

A x Tan(30) = 2.8

÷Tan(30)

A = 2.8 ÷ Tan(30)

A= 2 root 6

A= 4.8989...

So, y is 5 to 1 significant figure

Or

Y = 4.9 to 1d.p

(Haven't rounded anything in my calculation, even though it's shown that way, in my workings. So, you can follow along)

Hope this helps!

Solve the proportion 3/4 = 9/x

Answers

3/4 = 9/x
Cross-multiply.
3/4 = 9/x
3 * x = (9) * (4)
3x = 36
Divide both sides by 3.
3x/3 = 36/3
x = 12

Identify a numerator that will make the number
sentence true.
3x blank/fifth=3

Answers

Answer:

Answer is 5

Step-by-step explanation:

You say 3 divided by 3 /5 = 5

Hope answer helps you

help geometry test is coming up and teacher hasn’t taught anything yet,(80% of grade)

Answers

Answer: I think it’s 647.96

Step-by-step explanation:

warning: this is not the exact value (it’s rounded)

First you find the height of the traingle

To do that, do pythagoras theorem

square root 36 squared minus 25.5 squared

then use formula for area of a triangle

Other Questions
Write down negative form of the adjectives below Select the function table that matches the equation below.PLEASE HELP!!!!!!!!!!!y=8x+4 7. Justify why these ions do not exist under normal conditions.(a) K2+(b) 0- How to pronounce the word ''Biggest'' it's like ''big-est'', ''big-ist'' or ''big-uhst'' or how? What are the roles of nonverbal communication in the creration and maintenance of meaning? 90M+5857-990+54758-123+47483= Which types of dietary fats can increase blood ldl concentrations ?. Clare sketches a rectangular prism with a height of 11 and a square base and labels the edges of the base LaTeX: 8. She asks Han what he thinks will happen to the volume of the rectangular prism if she triples LaTeX: 8. Han says the volume will be 9 times bigger. Is he right? Explain or show your reasoning. 12TIME REMAL58:45Theof a story can be applied to other works of literature or to life.AbesettingplotO themecharacters just question nine 35 points!!! please help me Which of the following is NOT a strategy to prevent falls? A. Keeping walking surfaces free from moisture and clutter B. Replacing damaged electrical cords C. Installing handrails for stairs D. Keeping a ladder handy for reaching high places Please select the best answer from the choices provided. A B C D. write short note on land and sea breeze. diagram needed can someone help me with this please ????? Select the correct answer. Look at the examples in highlighted text in the passage. Which one supports the theme of society sometimes bestowing respectability for silly reasons? A. Between him and Darcy . . . . B. "With your good sense, . . . . C. "Oh! you are a great deal too apt, . . . . D. "He is also handsome,"."He is also handsome," replied Elizabeth; "which a young man ought likewise to be, if he possibly can. His character is thereby complete." List 2-3 ways that Spences account compares or contrasts with the Japanese textbook. Two reasons why students find the transition from school to collage challenging identify the direct object in the sentence:the clown juggled pins in his act Provide examples of biotic and abiotic factors that affect an organism's range. only answer if yk how to do this