Which formula represents how to find the area of a circle

Answers

Answer 1

Answer:

Area = pi r^2

Step-by-step explanation:

Answer 2

Answer:

Area=pi x r^2

Step-by-step explanation:


Related Questions

Mr. Torres bought 3 chairs on Saturday. He paid d dollars for each chair. Mr. Torres received $15 dollars in change when he bought the chairs. Which expression can be used to find the total amount Mr. Torres paid for these chairs

Answers

Answer: c. 3d + 15

Step-by-step explanation:

Mr. Torres paid d dollars for each of the three chairs which gives the expression of:

= 3 * d = 3d

He then paid with an amount that was greater than this 3d and got a change of $15.

That total amount that he paid is therefore, the price of the three chairs added to the $15 that he received back.

= 3d + 15

Stress is the body's automatic physical reaction to real or imagined forces.
True or False

Answers

Answer:

Its True

Step-by-step explanation:

The signs of stress include feeling of emotional or physical tension, headache, dry mouth, heartburn, constipation, depression, and insomnia. However, stress isn't necessarily a bad thing.

Answer:

True

Step-by-step explanation:

It is

simplify 6z + 9 + 3z + 2

Answers

Answer:

9z + 11

Step-by-step explanation:

6z + 9 + 3z + 2

9z + 9 + 2

9z + 11

Answer:

9z+11

Step-by-step explanation:

6z+9+3z+2

(6z+3z)+(9+2)

9z+11

The length of a rectangle is 1 foot more than twice the width. The area is 55 square feet. Find the length of the dimension of the rectangle.

Answers

Answer:

11 ft

Step-by-step explanation:

The formula for the area of a rectangle of length L and width W is

A = L * W.  

Represent the length, L, by 2W + 1 ("1 more than twice the width").  Then the area formula (above) becomes:

A = 55 ft^2 = (2W + 1)(W), which, when simplified, results in:

2W^2 + W - 55 = 0, whose coefficients are {2, 1, -55}.  Let's use the quadratic formula to solve this for W:

The discriminant, b^2 - 4ac, is 1^2 - 4(2)(-55), or 441.  The square root of 441 is 21.  Thus, the quadratic formula gives us:

        -1 ± 21

W = ------------- = (1/4)(-1 + 21), or W = 5 and W = -22/4 = -11/2

            2(2)

A measure of length can't be negative, so we reject W = -11/2 in favor of W = 5.

Then, according to the formula for L that we found earlier, L  = 2W + 1, or

L = 2(5) + 1, or L = 11.

Check:  Does L * W result in an area of 55 ft²?  Yes

The length dimension of the rectangle is 11 ft

Tyeewants to buy disposable masks for his family. Blue masks cost $1.50and greenmasks cost $2.50. He has $45to spend and wants to buy a total of 20masks.

Answers

Answer:

28

Step-by-step explanation:

im famous bro

someone please help me and show your work :)

Answers

Answer:

5/8=.6

.6×4×=2.4×

.6×16=9.6

9.6-20=10.4

10.4/2.4×

×=4

What numbers give you \4,233,000

Answers

Answer:

1000000-4,500,00

Step-by-step explanation:

Starting from 1million to 5 million

(PLEASE HELP ME ASAP‼️)
What is the measure of

Answers

Answer:

120 is my best guess it make since to me

Step-by-step explanation:

hey please help with this question( no links!!)

Answers

So the area of a circle is pi times the radius squared.
A= pi*r^2
The radius here is the diameter divided by 2.
radius = 16/2
r = 8
A= 3.14*(8)^2
A= 3.14*64
A= 200.96

C. 200.96 in^2

Answer:

d. 200.96 sq. in

Step-by-step explanation:

radius = diameter/2 = 16/2 = 8

Area of the circle = pi x r²

= 3.14 x 8²

= 3.14 x 64

= 200.96

ill mark brainlist plsshelp

Answers

multiply both sides by 30
30(15/18) = y
we then multiply 30*15 = 450
450/18 = y
we then get
y = 25

what is the perimeter of this tile pls help..

Answers

16. Their opposite sides are congruent since it is a rectangle.

If y varies directly as x and y = 5.5 when x = 11, find x when y = 3.5



0 x = 7
O x = 6
O x = 1.75
O x = 1.25

Answers

Answer:

x=7

Step-by-step explanation:

y=mx

5.5=m×11

5.5÷11=m

m=1/2

y=mx

3.5=1/2×x

3.5÷1/2=x

x=7

Answer:

x =7

Step-by-step explanation:

The direct variation equation is y = kx, where k is the constant of proportionality.

If y = 5.5 when x = 11, we can write 5.5 = 11k, which, when solved for k, yields k = 0.5.  

Then the direct variation equation in this case is y = 0.5x.

If y = 3.5, what is x?  y = 0.5x becomes 3.5 = 0.5x, yielding x = 7

A point is chosen at random on AK what is the probability that the point will be in CG

Answers

Answer:

The answer would be 2/5

Step-by-step explanation:

Fill in 2 as numerator then 5 as denominator.

(You welcome)

What is the solution to this inequality?

-4x > 500

A
x > 125

B
x < 125

C
x > -125

D
x < -125

Answers

Answer:

I would say ther ansewrr for this is going to most likely be c

Step-by-step explanation:

Answer:

The answer is D

Step-by-step explanation:

I did it already

If you had a right triangle with legs measuring 40 yards and 100 yards long,
what would be the length of the hypotenuse? Round your answer to the
nearest yard if necessary. *
70 yd
92 yd
108 yd
146 yd

Answers

9514 1404 393

Answer:

  (c) 108 yd

Step-by-step explanation:

For hypotenuse c and legs a and b, the Pythagorean theorem tells you the relation is ...

  c² = a² +b²

Solving for c, we have ...

  c = √(a² +b²)

  c = √(40² +100²) = √(1600 +10000) = √11600

  c ≈ 107.70 . . . . yards

The length of the hypotenuse is about 108 yards.

what is 24.79 x 4,022 pls

Answers

Answer:

[tex]24.79 \times 4022 \\ = 99705.38[/tex]

Answer:

99705.38

Step-by-step explanation:

hope that helps

if correct plz plz mark as brainliest

thank you and have a good day

19NBoli

:)

For this cylinder the radius r = 6.8 inches and the height L = 14.2 inches. Which is the BEST estimate for the surface area?

Answers

Answer:

923 in^2

Step-by-step explanation:

I took the test

A recipe calls for 6 cups of water and 4 cups of flour. a. If the recipe is increased to use 6 cups of flour, how much water should be used? Explain. b. If the recipe is decreased to 2 cups of water, how much flour should be used? Explain.​

Answers

Answer:

Step-by-step explanation:

find the value of two numbers if their sum is 178 and their difference is 14

Answers

x+y=178
x-y=14
Then you add the two equations together
2x=195
Divide both sides by 2
x= 97.5



Use equation 1 to substitute for x
x+y=178
97.5+y=178
Subtract 97.5 from both sides
Y=80.5
97.5+80.5= 178

One number is 97.5
The other number is 80.5

The St. Patrick's Day Parade has 214 floats in it. If each float is carrying
12 people, how many people are in the parade?

Answers

Step-by-step explanation:

214

x12

--------

428

+2140

————

2568


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Answers

Answer:

You are just begging too much

Step-by-step explanation:

if bob had 5 apples and gave Samatha 2 apples how much does he have

Answers

Answer:

3

Step-by-step explanation:

5-2=3

Answer:

According to my calculations...3

Step-by-step explanation:

First, find the area of the two smaller squares and use them to find
the area of the larger square. Input the areas. Then click done.

Answers

Is there supposed to be a picture that give the measurements and sizes of the squares

Please Help!!! Find the approximate volume by using 3.14 (not the pi key) Round to the nearest hundredth when necessary show your work!

Answers

give me 1 sec i will send it over

The approximate volume of first cone is 709[tex]mi^{3}[/tex] and the volume of second cone is 262 [tex]cm^{3}[/tex].

What is volume?

Volume is amount of substance a container can hold in its capacity. Volume of cone is basically 1/3 *π[tex]r^{2}h[/tex] in which r is radius and h is height of cone.

How to calculate volume?

We have been given two cones. First is having radius of 7 mi and

height 14 mi and second is having radius of 5 cm and height of 10 cm. We are required to find out the volume of both the cones.

Volume of first cone=1/3 *π[tex]7^{2}* 14[/tex]

=(49*3.14*14)/3

=708.86

Approximately 709 [tex]mi^{3}[/tex]

Volume of second cone =1/3π[tex]5^{2} *10[/tex]

=(25*3.14*10)/3

=261.67

Approximately 262 [tex]cm^{3}[/tex].

Hence the approximate volume of first cone is 709[tex]mi^{3}[/tex] and the volume of second cone is 262 [tex]cm^{3}[/tex].

Learn more about volume at https://brainly.com/question/463363

#SPJ2


What is the value of x?
A. 5
B. 10
C. 13
D. 15

Answers

Answer:

C) x = 13

Step-by-step explanation:

(6x - 8) = 1/2(10x + 10)

6x - 8 = 5x + 5

reduce:

x = 13


HELPPPPPPPPPPPPPPPPPPOPPPPPPP PLZZZ

Answers

Answer:

x^2 + 3x

Step-by-step explanation:

just add like terms so 3x^2 - 2x^2 = x^2 and 11x - 8x = 3x

The width of a recycling bin is 3/4 foot,the length is 1 foot,and the height is 1 1/2 feet.What is the volume of the recycling bin?

Answers

Answer:

1 1/8

Step-by-step explanation:

The formula to find volume is volume = length x width x height

So to find the volume of a recycling bin, multiply 3/4 x 1 x 1 1/2 ft

Anything x 1 = itself, so 3/4 x 1 = 3/4

Before multiplying 3/4 and 1 1/2 to make it easier I’m going to make 1 1/2 into an improper fraction instead of a mixed number.
To do this I multiply the outside number (1) by the denominator (2), and then add that number to the numerator (1)

1x2 = 2
2+1 = 3
1 1/2 = 3/2

Now I can multiply 3/4 and 3/2

Multiply the numerators: 3 x 3 = 9
Multiply the denominators: 4 x 2 = 8

3/4 x 3/2 = 9/8
9/8 is equivalent to 1 1/8, depending on if your teacher likes your answer to be a mixed number or not.

So, the volume of the recycling bin is 9/8 ft^3.

The answer to this question

Answers

Answer:

3   19/35

Step-by-step explanation:

2+1=3

1/7+2/5 will turn out to be 5/25+14/35 because of the common denominator of 35

5+14=19

3  19/35

Of the 45 staff members at SEMS ,9 were out with the flu one day in January. What percent of the teachers were at work today?

Answers

Answer:

80%

Step-by-step explanation:

Given that Of the 45 staff members at SEMS ,9 were out with the flu one day in January, it means that the number of people at work

= 45 - 9

= 36

As a percentage,

= 36/45 * 100%

= 4/5 * 100%

= 80%

The percent of the teachers were at work today is 80%

what is n if the equation is
n - 2 divided by -3 = -6
Please help me I am having a lot of trouble, thank you

Answers

n - 2 / - 3 = - 6 (1) multiply both sides by -3 to get n - 2 alone
n - 2 = 18 (2) add 2 to both sides; 2 on left side gets cancelled so we can now have n all alone
n = 20
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