This formula is used to calculate the area of a circle using the diameter:

A= 1/4πd².

Rearrange the formula to calculate the diameter of a circle.
d = _____

Answers

Answer 1

Answer:

d= 2√a/π

     

To calculate the diameter, rewrite the formula to isolate D

Because a negative diameter doesn’t make sense, eliminate the negative answer from the solution

Simplify further to get the solution

Answer 2

The formula to calculate the diameter of the circle is d = 2 √( A/π )

where d = diameter of the circle

A = area of the circle

What is a Circle?

A circle is a closed two-dimensional figure in which the set of all the points in the plane is equidistant from a given point called “center”. Every line that passes through the circle forms the line of reflection symmetry. Also, the circle has rotational symmetry around the center for every angle

The perimeter of circle = 2πr

The area of the circle = πr²

where r is the radius of the circle

The standard form of a circle is

( x - h )² + ( y - k )² = r²,

where r is the radius of the circle and (h,k) is the center of the circle

Given data ,

Let the radius of the circle be = r

So , the diameter of the circle = 2r

Now , the area of the circle = πr²

Substituting the value for r , we get

Area of the circle = ( 1/4 ) πd²

So , A = ( 1/4 ) πd²

Now , solving the equation for diameter of circle d , we get

Multiply by 4 on both sides of the equation , we get

πd² = 4A

Divide by π on both sides of the equation , we get

d² = 4A/π

Taking square roots on both sides of the equation , we get

d = 2 √A/π

Therefore , the value of d is 2 √A/π

Hence ,

The formula to calculate the diameter of the circle is d = 2 √( A/π )

where d = diameter of the circle

A = area of the circle

To learn more about circle click :

https://brainly.com/question/28391204

#SPJ2


Related Questions

ayo help pls can u help me:)

Answers

Answer:

A: 0.103

Step-by-step explanation:

Answer:

0.103 liters of juice

Step-by-step explanation:

Subtraction

1.09-0.987=

0.103

3x-5>-41
Solving inequality

Answers

Answer:

x [tex]\geq 11[/tex]

Step-by-step explanation:

x can equal anything -11 and above

question on the picture:

Answers

The correct answer should be 7.5

Remove the brackets using the distributive law for the following: 2(x + 3)

Answers

Answer:

2x + 6

Step-by-step explanation:

= 2(x + 3)

= 2(x) + 2(3)

= 2x + 6

Solving Multistep Inequalities Task Cards Activity​

Answers

don’t click on the link it’s a virus

LAST POINTS PLEASEE PLEASEEEE HELP!! :(

Answers

Answer:

D. 22  2/3

Step-by-step explanation:

To find area you multiply length times width.

Here:

L = 5 2/3

and W = 4

So multiply 5 2/3 by 4, you get 22 2/3

Good luck! Please mark brainliest!

The parallelogram shown below has an area of 35 units^2 2 squared. Find the missing height. h =h=h, equals units

Answers

Answer:

h = 5 units

Step-by-step explanation:

Given that,

The area of the parallelogram, A = 35 unit²

In the attached figure, we can see that the base is 7 unit.

We know that,

Area of a parallelogram, A = b × h

So,

[tex]h=\dfrac{A}{b}\\\\h=\dfrac{35}{7}\\\\h=5\ units[/tex]

So, the value of h is equal to 5 units.

The expression (n^14)(n^3) is equivalent to n^x
What is the value of x

Answers

Answer:

17

Step-by-step explanation:

add the exponents

Your answer is 17 have a good day

I took a pic, I hope that's fine​

Answers

Answer:

Well in order to find the y-intercept, the “x” has to be 0. To find that we need to find the pattern and to ind the pattern you would need to find the slope. The slope is -4 or 4/ -1

So the Y is 4 and the X is -1

So use that to add or subtract for the pattern

1, -4

0, 0

The y- Intercept is 0 or option (A)

How might we know whether x is a positive number, negative number, or zero, without solving the equation? 5x = -16.5​

Answers

To be able to get the negative number you have to divide x by a negative number to get your result. Seeing the solution is a negative number but your left side of the equation is a positive number tells us we have to divide by a negative number on the left side and right to give us the solution... (I think)

Help please due in 45 minutes

Answers

Answer: B

Step-by-step explanation:

Help find the area to this figure fasttt

Answers

Answer:

i can't see it was blur

i can't answer can you pic it again

Answer:

1/2 ×9×7=31.5

4×2= 8

31.5-8=23.5

=23.5in2

Is y=-5 linear or non linear

Answers

Answer:

No

Step-by-step explanation:

All linear functions can be written in the form y = mx + b, where m is the slope and b is the y-intercept (slope-intercept form). ... This function, y = 5/x, is a hyperbola, with a vertical asymptote at x = 0 and horizontal asymptote at y = 0

Answer:

Linear

Step-by-step explanation:

Y=-5 is linear because it has no exponents.

Mickey has 1/5 of a bag of dog food left. He is splitting the food between 3 dogs. What fraction of the bag will the dogs get if it's divided evenly?

Answers

1/5 divided by 3 is 1/15, so each of the dogs will get 1/15 of the bag!!

A bag is full of green pieces of paper and yellow pieces of paper. A player collects data by drawing pieces of paper from a bag. The player canl win the game if he can correctly predict the next color he will pull from the bag. Each player can choose to collect 5, 10, or 20 outcomes before making a prediction.

What number of outcomes should a player choose?
A)5
B)10
C)20 ​

Answers

B. Hope it Helps
#CoL

An onion soup recipe calls for 3 2/3 cups of chopped onions. Katrina has already chopped 1 1/3 cups of onions. She wants to know how many more cups she needs to chop. Katrina still needs to chop cups of onion soup recipe calls for 3 2/3 cups of chopped onions. Katrina has already chopped 1 1/3 cups of onions. She wants to know how many more cups she needs to chop. Katrina still needs to chop cups of onions

Answers

Answer:

[tex]2\dfrac{1}{3}\ \text{cups}[/tex]

Step-by-step explanation:

Amount of chopped onions required = [tex]3\dfrac{2}{3}\ \text{cups}[/tex]

Amount of onions Katrina has already chopped = [tex]1\dfrac{1}{3}\ \text{cups}[/tex]

Amount of onions that are required to be chopped is given by

[tex]3\dfrac{2}{3}-1\dfrac{1}{3}\\ =\dfrac{11}{3}-\dfrac{4}{3}\\ =\dfrac{7}{3}\\ =2\dfrac{1}{3}\ \text{cups}[/tex]

Hence, the amount of onions that are required to be chopped is [tex]2\dfrac{1}{3}\ \text{cups}[/tex].

HELPPPPPPPPPPPP PLEASEEEE

Answers

Answer:

H. 13.5 in²

Step-by-step explanation:

[tex]V=LWH/3[/tex]

[tex]V=(3)(3)(4.5)/3[/tex]

[tex]V=13.5 in^{2}[/tex]

--------------------

hope it helps...

have a great day!!

Two angles are supplementary. One angle is 155. What is the measure of the other angle?

Answers

Answer: your answer should be an angle that is greater than 90 degrees.

Step-by-step explanation: a supplementary angle is an angle that is greater than 90 degrees. hope it helps :)

What is the value for the missing angle ??


Answers

Answer: 9 inches.
Do the pythagorean theorem to find your answer.
Formula: a^2 + b^2 = c2
12 = b
15 = c
a^2 + 12^2 = 15^2
Simplify the equation
a^2 + 144 = 225
Subtract 144 on both sides.
a^2 = 81
Square root of 81 is 9.

Please help with scale factor!!!!!!!! I will mark brainliest if right! Two rectangular prisms have a side scale factor of 1/4. If the smaller prism has a surface area of 45cm square, what is the surface area of the larger prism? Find the scale factor and area.

Answers

Answer:

1/16720 cm²

Step-by-step explanation:

Area is the product of two dimensions.

If the scale factor is 1/4, the ratio of the areas will be:

(1/4)² = 1/16

The smaller prism has a surface are of 45 cm².

The larger prism has a surface area:

45*16 = 720 cm²

Naman purchases 3 vases for an upcoming event for m dollars each. Each vase is charged an addition 5% sales tax. Which expressions can Naman use to express the total cost of the 3 vases? Select each correct answer. 3.05m 3(m+0.05m) 3.15m 3m + 0.05m

Answers

The two that have 0.05 in it

222222+666666689879=?

Answers

Answer:

666666912101

Step-by-step explanation:

Add it

Answer:

6.666669121  x 10 to the 11th power

Step-by-step explanation:

To find the roots of the quadratic equation 3x²- 2x+1=0 using the quadratic formula​

Answers

Answer: This is what i got x=1+i √2/3 not sure if that is what you need but hope it helps

Step-by-step explanation:

Answer:

[tex]x = \frac{ 1 + 1\sqrt{-1}}{3}[/tex] and [tex]x = \frac{ 1 - 1\sqrt{-1}}{3}[/tex]

Step-by-step explanation:

Hello!

The quadratic formula is: [tex]x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}[/tex], derive from the standard form of a quadratic: [tex]ax^2 + bx + c[/tex].

The expression 3x² - 2x + 1 is a lot like our standard form:

a = 3b = -2c = 1

Let's plug in the values and solve.

Solve the Quadratic Formula:

[tex]x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}[/tex][tex]x = \frac{-(-2) \pm \sqrt{(-2)^2 - 4(2)(1)}}{2(3)}[/tex][tex]x = \frac{2 \pm\sqrt{4 - 8}}{6}[/tex][tex]x = \frac{2 \pm \sqrt{-4}}{6}[/tex][tex]x = \frac{2 \pm 2\sqrt{-1}}{6}[/tex][tex]x = \frac{ 1 \pm 1\sqrt{-1}}{3}[/tex]

The roots are [tex]x = \frac{ 1 + 1\sqrt{-1}}{3}[/tex] and [tex]x = \frac{ 1 - 1\sqrt{-1}}{3}[/tex]

Learn more about the derivation of the quadratic formula here:
https://brainly.com/question/11630991

how to solve this?someone help me

Answers

Hope it helps you! ........

11.
Write an inequality to model the situation.

A number exceeds 9.

A. n > 9

B. n < 9

C. n [tex]\geq[/tex] 9

D. n [tex]\leq[/tex] 9

Answers

A would be the correct answer

Joey has a beach ball with a radius of 20 cm. What volume of air will it hold when fully inflated? [Round to nearest tenth.]

A) 83.8 cm3
B) 251.4 cm3
C) 1676.2 cm3
D) 33,493.3 cm3

Answers

The answer is D hope it helps

Formula for volume of a sphere is

4pi*r^3/3

what is the slope of the line?

Answers

The slope of the line is gonna be 1/3
It’s -3 as the slope is negative with 3 rise and 1 run meaning it’s -3/1 aka -3! Therefore answer: -3

Please please ASAP please thank you so much and no links or files

Answers

Answer:

Step-by-step explanation:

To find the area of a triangle you need to know the measurement of the height and the base.

The height

The height is perpendicular to the base.

They don't explain that properly lol its a bit confusing but I tried

find the area of the figure. round your answer to the nearest hundredth

Answers

Answer: 84.14

Step-by-step explanation:

Area of the rectangle is L*W=B*H

14*5=70

To find the area of the half circle we must use the formula pi r^2/2

r=radius

and the radius is 6 because we add 4 and 4 and need to get to 14

because the line below it is 14 and it is a rectangle so the lengths are the same.

Diameter=6

So radius =3

pi (3)^2/2=

9/2 pi + 70=

84.14

Answer: 84.13

lmk if this is wrong

Step-by-step explanation:

Area of the rectangle:

5(14)=70

Area of the half circle:

Formula: πr^2

Substitute: 3.14(3)^2

Solve: 3.14(9)

3.14(9)=28.26

Divide the area by 2 since it's a half circle

28.26/2=14.13

Add the area of the rectangle and half circle

70+14.13=84.13

Someone help plz make sure it’s right?

Answers

Sohcahtoa
Use toa, tangent = opposite/adj
Opposite = 20
Adjacent = 21
TanX = 20/21

The solution is C
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