Circumference of the circle

Circumference Of The Circle

Answers

Answer 1

Step-by-step explanation:

The formula for calculating a circle's circumference is πd, where π is an irrational number (3.14....) and d is the diameter of the circle.

In the circle with diameter 19.5cm, the circumference is around 3.14 * 19.5cm = 61.23cm. (A)

Answer 2

Answer:

61.2

Step-by-step explanation:

circumference= 2πR

r=d/2

r= 19.5/2

r=9.75

circumference= 2×3.14×9.75

circumference= 61.2


Related Questions

help me please 20 points!!!!!​

Answers

Answer:

20

Step-by-step explanation:

4x + 12x = 320

16x = 320

x = 320/16

x = 20

[x]/[6]=-46 , what is x

Answers

Answer:

Step-by-step explanation:

x/6 = - 46

Multiply by 6 on both sides

x = - 46 x 6

x = - 276

Answer:

x= -276

Step-by-step explanation:

x/6=-46

x= -46(6)

x= -276

i think... :)

Which of the following is divisible by 5 but not 10 ? 230, 255, 260, 500

Answers

Answer:

255 -_-

Step-by-step explanation:

230 is divisible by both

260 is divisible by both

500 is definitely divisible by both

Just use your calc

As an estimation we are told 5 miles is 8 km.
Convert 92 km to miles.

Answers

Answer:

105 miles

Step-by-step explanation:

You go to Mellow Mushroom and your bill is $50.
You decide to leave a 20% tip.
What is your final cost?

Answers

60$

10% of 50$ is 5(50/10), so 20% (10% x 2) would be 10 (5$ x 2)

The original 50$ added to the 10$ would make 60$

what is the slope of the graph of y=12x-19

Answers

Answer:

The slope is 12

Step-by-step explanation:

Remember the slope formula y=mx+b

m= the slope

b= y-intercept

To be labeled as a jumbo egg, the egg is supposed to weigh 2.5 oz. Priya buys a carton of jumbo eggs and measures one of the eggs as 2.4 oz. What is the percent error?

Answers

Answer:

The percent error is 4%

Step-by-step explanation:

Expected value of egg = 2.5 oz

Observed value of egg = 2.4 oz

We need to find the percent error.

The formula used to calculate percent error is: [tex]Percent\:error=|\frac{Observed\:Value-Expected\:Value}{Expected\:Value}| .100\%[/tex]

We use || (absolute) sign because if the answer is negative, we considered it as positive i,e |-a| = a

Putting values in formula and finding percent error

[tex]Percent\:error=|\frac{Observed\:Value-Expected\:Value}{Expected\:Value}| .100\%\\Percent\:error=|\frac{2.4-2.5}{2.5}| .100\%\\Percent\:error=|\frac{-0.1}{2.5}| .100\%\\Percent\:error=|-0.04|.100\%\\We\:know\: |-a|=a\\Percent\:error=0.04.100\%\\Percent\:error=4\%[/tex]

So, the percent error is 4%

Use the scatter plot of car resale values to answer the following question about making a prediction of the resale value of a
car.
Car Resale Values
100
80
60
40
20
10
Age of Car
Using the regression line, or line of best fit, predict the resale value of an 8-year-old car with an original cost of $15,000.
The 8-year-old car could be worth approximately $2000.
b The 8-year-old car could be worth approximately $5000.
The 8-year-old car could be worth approximately $3000.
d. The 8-year-old car could be worth approximately $4500.

Answers

Answer:

 

The 8-year-old car could be worth approximately $4500.

Step-by-step explanation:

answer on edge 2020

Answer:

C.the 8 year old car can be worth about 3000 just look at the graph

Step-by-step explanation:

#happycheating

Need hellllp ASAP!!!!!!!

Answers

Answer:

d

Step-by-step explanation:

11×17=187

i rounded both of the numbers to whole numbers and then multiplied them. i hope that's what they meant :)

Billy wants to buy a $1250 drum set and the
music store has a deal where you can take it
home today for a 20% down payment and
then 3 years of monthly payments. How
much money will Billy need in order to make
the down payment?
..

Answers

Answer:

LOL i don't even know

Step-by-step explanation:

to convert the ratio of 3:5 to 5:6, which number should be added on both?​

Answers

The number that should be added on both is 7.

Transform the following formulas as indicated.
A = bh, solve for h

a=1/2h (a+b), solve for b

Answers

Is there a problem equation?

Can you help me

(1). If f(x)=|x−5|+3, find f(2).


11


6


4


0

(2). If f(x)=8−3|x+2|, find f(−6).


−16


−4


4


20

(3). What is the turning point of the graph of f(x)=|x−2|+3?


(2, −3)

(2, 3)

(−3, 2)

(3, 2)

Answers

(1).

f(x) = |x − 5| + 3

f(2) = |2 − 5| + 3 = |−3| + 3 = 3 + 3 = 6

(2).

f(x) = 8 − 3|x + 2|

f(−6) = 8 − 3|−6 + 2| = 8 − 3|−4| = 8 − 3·4 = 8 −  12 = − 4

(3).

For f(x) = |x − h| + k the turning point is (h, k), so:

f(x) = |x − 2| + 3   ⇒  the turning point is: (2, 3)

The value of f (2) will be;

⇒ f(2) = 6

The value of f (- 6) will be;

⇒ f(-6) = 4

The turning point of the graph will be;

⇒ (2, 3)

What is an expression?

Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.

Given that;

1) The function is,

⇒ f(x) = |x−5| + 3

2) The function is,

⇒ f(x) = 8 - 3 |x+ 2|

3) The function is,

⇒ f(x) = |x−2| + 3

Now,

1) The function is,

⇒ f(x) = |x−5| + 3

Put x = 2;

⇒ f (2) = |2 - 5| + 3

⇒ f (2) = 3 + 3

⇒ f(2) = 6

2) The function is,

⇒ f(x) = 8 - 3 |x+ 2|

Put x = - 6;

⇒ f (- 6) = 8 - 3 |- 6 + 2|

⇒ f (-6) = 8 - 3 × 4

⇒ f(-6) = 8 - 12

⇒ f (- 6) = - 4

3) The function is,

⇒ f(x) = |x−2| + 3

We know that;

Turning point of the function f (x) = |x - h| + k are (h, k)

So, By comparing we get;

The turning point of the graph of f(x) = |x−2| + 3 are (2, 3).

Thus, The value of f (2) will be;

⇒ f(2) = 6

The value of f (- 6) will be;

⇒ f(-6) = 4

The turning point of the graph will be;

⇒ (2, 3)

Learn more about the mathematical expression visit:

brainly.com/question/1859113

#SPJ2

what is the lowest term of 64/96

Answers

Answer: the answer is 2/3

Step-by-step explanation: hope this helps

Answer:

[tex]0.6666666667[/tex] [tex]or[/tex] [tex]\frac{2}{3}[/tex]

Step-by-step explanation:

[tex]--------------------------------------------[/tex]

[tex]\frac{64}{96}[/tex] = [tex]\frac{32}{48}[/tex] = [tex]\frac{16}{24}[/tex] = [tex]\frac{8}{12}[/tex] = [tex]\frac{4}{6}[/tex] = [tex]\frac{2}{3}[/tex] = [tex]0.6666666667[/tex]

[tex]--------------------------------------------[/tex]

Hope this helps! <3

[tex]--------------------------------------------[/tex]

Kurt has 26 plant on his porch his neighbor gives him p more plants. Now he has 31 plants in all a. Write an equation to represent the situation

Answers

Answer:

26 + 5 = 31

Step-by-step explanation:

Please pick me as brainliest

Answer:

31-26=p

Step-by-step explanation:

if you need the p value, its 5

to find the p value, subtract 26 from 31

hope this helps

please mark brainliest

Kiesha and her classmates wrote proportions for the reduction of a triangle.

A larger and smaller triangle have corresponding heights and bases.

Which proportions are set up correctly? Select three options.
StartFraction original height over original base EndFraction = StartFraction reduction height over reduction base EndFraction
StartFraction original height over reduction height EndFraction = StartFraction original base over reduction base EndFraction
StartFraction original height over reduction base EndFraction = StartFraction reduction height over original base EndFraction
StartFraction reduction height over reduction base EndFraction = StartFraction original height over original base EndFraction
StartFraction original height over original base EndFraction = StartFraction reduction base over reduction height EndFraction

Answers

Answer: A, B, and D are correct!

Step-by-step explanation:

Hope this helps! :)

The three proportions that are set up correctly for the reduction of a triangle are:

original height / original base = reduction height / reduction base

original height / reduction height = original base / reduction base

original height / reduction base = reduction height / original base

Options 1, 2, and 3 are correct.

What is a triangle?

A triangle is a 2-D figure with three sides and three angles.

The sum of the angles is 180 degrees.

We can have an obtuse triangle, an acute triangle, or a right triangle.

We have,

The three proportions that are set up correctly for the reduction of a triangle are:

1)

original height / original base = reduction height / reduction base

This proportion represents that the ratio of the original height to the original base is equal to the ratio of the reduction height to the reduction base.

2)

original height / reduction height = original base / reduction base

This proportion represents that the ratio of the original height to the reduction height is equal to the ratio of the original base to the reduction base.

3)

original height / reduction base = reduction height / original base

This proportion represents that the ratio of the original height to the reduction base is equal to the ratio of the reduction height to the original base.

Thus,

original height / original base = reduction height / reduction base

original height / reduction height = original base / reduction base

original height / reduction base = reduction height / original base

Learn more about triangles here:

https://brainly.com/question/25950519

#SPJ3

Write a simplified expression for the algebra tiles below. Remember, variables should be listed first, then constants.

Answers

Answer:

Sorry if im wrong but -4x

Step-by-step explanation:

If right plz mark branliest

Which 3 relationships are true in the construction below?

Answers

Answer:

The correct options are;

Line CD is the perpendicular bisector of line AB

Line segment AB is perpendicular to line CD

Line segment AE is congruent to line segment BE

Step-by-step explanation:

From the construction, we have that the radius of circle A is equal to the radius of circle A as the circumference of circle A passes through the center of circle A

Therefore, the construction is the bisection of line segment AB by the construction of the perpendicular bisector CD, from which we have line segment AE is congruent to line segment BE and line segment AB is perpendicular to line CD

lemme get some help plz

Answers

Answer:

6(8x-2)

48x- 12 (this is the answer)

Step-by-step explanation:

to do those, you use the distributive property, which is taking the number outside the parenthesis and multiplying it by everything inside of it

Ani teaches 25% of the 4 year-olds at her school. There are 60 4-year- olds. Ani also teaches 20 3-year- olds. How many students does Ani teach altogether ?

Answers

Answer:

[tex]35[/tex] students

Step-by-step explanation:

Given information:

- There are 60 4 year-olds, Ani teaches 25% of them.

- Ani also teaches 20 3 year-olds.

Total students:

[tex]25\%\times60 = 15[/tex] 4 year-olds

[tex]15+20 = 35[/tex]

∴ Ani teaches [tex]35[/tex] students in total

Hope this helps :)

Write the equation of the graphs which have m=2, c = 1

Answers

Answer:

y = 2x + 1

Step-by-step explanation:

formula for equation of graph:

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

substitute m = 2 and c = 1 into the equation

[tex]y = 2x + 1[/tex]

Step-by-step explanation:

please see it my step work solution

UUUUUUUUUUUUUUUUUUUUUU

Answers

-3>-4 because the number line shows it going to the right side which means the number is bigger then -4 so the only bigger answer is -3 and is correct

Answer:

B. -3 > -4

Step-by-step explanation:

have a nice day!!

You can burn about 450 calories if you run 5 miles.
How many miles will you need to run to burn 630
calories?
Justify your reasoning.

Answers

Answer:

6 miles

Step-by-step explanation: 450 divided by 5 is 90 and if you add 450 plus 90 thats 640 calories which is more then 630!


Work out 97.974436÷14and give your answer to 2 decimal places.​

Answers

Answer:

7

Step-by-step explanation:

97.974436/ 14= 6.998174

round to 2 decimal places by looking at the third digit after decimal and is 8 that is greater than 5 so will round up the second digit after the decimal

But, that will make 9 a 10 so we have to make the number 7

find the length of hypotenuse of a right triangle with legs of 8 and 15

Answers

Answer:

17

Step-by-step explanation:

(8×8) + (15×15) = 289

square root of 289 is 17

Solve the equation by completing the square.

6x^2-12x-16=2

Answers

X=3,-1 is the correct answer. Completing the square means writing a quadratic in the form of a squared bracket and adding a constant if necessary.

plz help me, thank you

A bacteria culture starts with 40 bacteria and the number doubles every 20 mins.
write an equation of an exponential function that models the described situation.

plz show me the working.

Answers

Answer:

[tex]P=40(1.03526)^{t}[/tex]

Step-by-step explanation:

Exponential Growth

The natural growth of some magnitudes can be modeled by the equation:

[tex]P=P_o(1+r)^{t}[/tex]

Where P is the actual amount of the magnitude, Po is its initial amount, r is the growth rate and t is the time.

The initial number of bacteria is Po=40 and it doubles (P=2Po) at t=20 min. With that point we can find the value of r:

[tex]2P_o=P_o(1+r)^{20}[/tex]

Simplifying:

[tex](1+r)^{20}=2[/tex]

Solving for 1+r:

[tex]1+r=\sqrt[20]{2}[/tex]

[tex]1+r=1.03526[/tex]

The exponential function that models the situation is:

[tex]\mathbf{P=40(1.03526)^{t}}[/tex]

A car is traveling at a steady speed. It travels 2 1/2 miles in 3 1/3 minutes. How far will it travel in 45 minutes ?

Answers

Answer: The car will travel 30 2/3 miles in 45 minutes.

Answer:

Please Mark as Brainliest!!

Step-by-step explanation:

The car will travel 30 2/3 miles in 45 minutes.

The car will travel 40 miles in 1 hour

Bula went to Target and bought a new jacket. The price tag said $85 but the sign on the rack said
20% off the price tag. How much did Bula pay for the jacket?
$17
$65
$70
$68

Answers

Answer:

she paid 68 so it is d i think

The answer is $65 i hope this help :)

ANSWER RIGHT PLEASE AND ILL GIVE BRAILIEST

Answers

Answer:

C

Step-by-step explanation:

The +2 tells you where the 'y' will intersect... and it's gonna be positive 2, and only C has that so ye

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