how do you find the value of pi using the area

Answers

Answer 1

Answer:

How to find the area in terms of pi?

Answer: First divide the circumference by Pi to give the diameter of the circle (27 divided by 3.14 = 8.59...). Now halve the diameter to give the radius (8.59 divided by 2 is 4.29...). Now use Pi*r^2 to find the area of the circle (Pi times 4.29^2 = 58.0 cm^2 to 1 decimal place)

Step-by-step explanation:


Related Questions

write 2 / 3 of 4 as a mixed number. ​

Answers

2/3 of 4 as a mixed number will be 2 2/3

Answer:

2 and 2/3

Step-by-step explanation:

i used my math skillz

Sandy went to her local zoo that featured 34 tion exhibits. If the zoo features 40
exhibits in total, then what percent of the zoo's exhibits feature lions? Round your
answer to the nearest whole number if necessary.

Answers

Answer:

85%

-> If 34 of the 40 exhibits are lions, then 34/40 are lions.

-> 34/40 = 0.85

-> 0.85 * 100 = 85%

Have a nice day!

     I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly.

- Heather

solve 4x+4= 2x+10 will give brainliest to whoever answers first

Answers

Hi!

4x+4=2x+10

Move all the numbers to the right and all the variables to the left, using the opposite operation:

4x-2x=10-4

2x=6

Divide both sides by 2:

x=3 (Answer)

Hope it helps!

Enjoy your day!

~Misty~

Answer:

4x+4=2x+10 --> 4x-2x=10-4 --> 2x=6 --> x=6/2 --> x=3/1 --> x=3 Answer.

A. Each step in this pattern decreases by 1 block. B. Each step in this pattern increases by 1 block. C. Each step in this pattern doubles the number of blocks. D. Each step in this pattern triples the number of blocks.​

Answers

Answer: Each one increases by 1 block

Step-by-step explanation:

Use Descartes rule to determine the possible number of positive and negative solutions for the polynomial: f(x)=10x^4-21x^2+11​

Answers

Answer:

x = 11/2

Step-by-step explanation:

just go by each step

7x7+3-2 (4-5+-6)(77x8)
?????????????????????/

Answers

Step-by-step explanation:

7 x7+3-2(-7) (618)

=7 x7+3-2(-4326)

=-4341

I really need help on this one

please and thank you.

Answers

Answer:

no

no

yes

yes

yes

Step-by-step explanation:

integers can only be whole numbers

just simplify to find out

a) not whole number

b) not whole number

c) whole number

d) 14/7 = 2; whole number

c) -12/2 = 6; whole number

a and b = NO

c, d, e =  YES

Multiply the polynomials (x + 3) (2x – 4). What is the product in the form ax² + bx + c?

Answers

answer:

2x²+2x-12

explanation:

(x + 3) (2x – 4)                           [ open the bracket ]

x(2x) -4(x) +3(2x)+ 3(-4)             [ multiplication ]

2x²-4x+6x-12                             [ simplify ]

2x²+2x-12                                  [ final answer ]

Answer:

We want to multiply two polynomials of degree 1, and get in that way a polynomial of degree 2.

We will get the polynomial: p(x) = 2 * x² + 2 * x - 12

Step-by-step explanation:

We just want to multiply (x + 3) and (2*x - 4).

So we start by writing:

(x+3) * (2*x-4)

Now we just expand this:

(x+3) * (2*x-4) = 2 *  x² + x * (-4) + 3 * (2 * x) + 3 * (-4)

Now we need to simplify the above expression:

2 * x² + x * (-4) + 3 * (2*x) + 3 * (-4) = 2 * x² + (6 - 4) * x - 12 = 2 * x ² + 2 * x - 12

This is the polynomial we wanted to get:

p (x) = 2 * x² + 2 * x - 12

If you want to learn more, you can read:

brainly.com/question/11536910

If you don’t know the answer please don’t comment.

Find:

(f + g)(x) for f(x) = 2x^2 − 8 and g(x) = x + 2

A.) 2x^2 − x − 6

B.) 4x^2

C.) 3x^2 − 6

D.) 2x^2 + x − 6

Answers

Answer:

D) 2x^2 + x -6

Step-by-step explanation:

(2x^2 - 8) + (x+2)

combine like terms

2x^2 + x -6

Given the following data from a sample find the sample standard deviation. 5, 16, 24, 15, 2, 8

Answers

Answer:

8.2

Step-by-step explanation:

The sample standard deviation measures the spread ofa data distribution of the sample. It is usually used toestimate the population standard deviation.

PLS HELP. Find the value of a, AB, BC, CD, AD in the parallelogram. Pls show work.

Answers

Answer:

A= 21

Step-by-step explanation:

a=19.5+1.5=21

21+2.9=23.9

2(21)-18.1

Lines AB and CD are congruent.

Help math math math math

Answers

Answer:

y = - 4x + 15

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

y = [tex]\frac{x}{4}[/tex] - 2 ← is in slope- intercept form

with slope m = [tex]\frac{1}{4}[/tex]

Given a line with slope m then the slope of a line perpendicular to it is

[tex]m_{perpendicular}[/tex] = - [tex]\frac{1}{m}[/tex] = - [tex]\frac{1}{\frac{1}{4} }[/tex] = - 4 , then

y = - 4x + c ← is the partial equation

to find c, substitute (4, - 1 ) into the partial equation

- 1 = - 16 + c ⇒ c = - 1 + 16 = 15

y = - 4x + 15 ← equation of perpendicular line

Answer:

y = - 4x + 15

Step-by-step explanation:

A can of soup weights 251 grams. How many cans
Would weigh about a kilograrn?

Answers

Answer:

0.251 kg

Step-by-step explanation:

To convert from grams to kilograms, we divide the # of grams by 1000, or move the decimal point to the right by 3.

[tex]25.1[/tex] [tex]2.51[/tex] [tex]0.251[/tex]

Therefore, the answer is 0.251 kg.

Answer:

4 cans

Step-by-step explanation:

1kg = 1000g

=> 1000g/251g

= 3.9 cans which is around 4

If A= (-4 -4 1) (1 4 7) (2 3 3) and B= (2 9 -9) (8 8 -2) (4 10 1), find -4A + 8B

Answers

C. Because (-4*-4) +(8*2)= 32 And c os the only one with it

Naomi's fish is 40 millimeters long. Her guinea pig is 25 centimeters long.
How much longer is her guinea pig than her fish?

Answers

Answer:

21cm

Step-by-step explanation:

Solution,

Length of fish=40mm=40/10=4cm

Length of pig=25cm

Now,

Difference of their length=25cm-4cm=21cm

Hence,the pig is 21cm long than the fish

What part of speech is the italicized word?

We had difficulty crossing the swift stream.

verb
adjective
adverb
noun
pronoun

Answers

Verb hope this helps

Determine the average rate of change of f (x) = x² - 10x + 5 over the interval [-4, 4].
=
-

Answers

Answer:

f ( x ) = ( x - 5 ) ² - 20

Step-by-step explanation:

1- Add the same value to both sides

f ( x ) = x ² - 10x + 5

2- Add 25 to the expression

f ( x ) + ? = x ² - 10x + ? + 5

3- Add 25 to the left-hand side

f ( x ) + ? = x ² - 10x + 25 + 5

4- Factor the expression

f ( x ) + 25 = x ² - 10x + 25 + 5

5- Move the constant to the right

f ( x ) + 25 = ( x - 5 ) ² + 5

6- Calculate

f ( x ) = ( x - 5) ² + 5 - 25

It will help me a lot if you count me as brainlist anyways good luck!

Help help math math math math

Answers

Answer:

y - 5 = -3(x + 3)

Step-by-step explanation:

A parallel line has the same slope but different y-intercept

So the slope of our line is -3

We also have our x1 and y1

So input that into the point-slope formula : y - y1 = m(x - x1)

y -y1 = m(x - x1)y - 5 = -3(x - (-3))y - 5 = -3(x + 3)

The equation of the line is [tex]\boxed{\text{y - 5 = -3(x + 3)}}[/tex]

-Chetan K

Answer:

5 = -3(x + 3)

Step-by-step explanation:

i got it right

A 1 1/8
B 2 1/8
C 5 1/8
D 9 1/8

Answers

ANSWER: 2¹/₈ inches

Solution: 1⁷/₈ + ²/₈
= 1⁹/₈
= 2¹/₈ inches
{the measurement of the longest meteor is 1⁷/₈ inches; the shortest meteor is ²/₈ inches}

Answer: 91/8 I believe

Step-by-step explanation:


Pls help me as soon as possible

Answers

Answer:

Well your trying to find meters per second.

So it’s a unit rate question.
In order to find the unit rate you divide the original by the newest.
In this case it’s (c) or -4.9/.71

Answer:

can you complate this heart

Use < , > , = , ≤ , ≥ to complete these statements. 1) if x < y , then y___ x, 2) if x > 5 and 5 > y, then x ___ y, 3) if x is four at most, then x ___ 4, 4) if x - y = 0, then x ___ y Can someone please help me I've been stuck on these for 3 days.​

Answers

Answer:

1) y > x

2) x > 5 > y

3) x ≤ 4  ( or 4 ≥ x )

4) x = y

Step-by-step explanation:

1) 1. y is greater than x

  2. so y > x

2) 1. 5 is less than x and more than y

   2. we can write this like x > 5 > y

   3. you can just squish them together as a shortcut usually: x > 5 and 5 > y      -->      x > 5 > y

3) 1. x is for at most, we can say this as x is less than or equal to 4

   2. this is written as x ≤ 4  or  4 ≥ x

4) 1. x - y = 0 so x and y must be the same value

   2. therefore x = y

How’s this for 20 characters or more brainly

Answers

Answer:

x-intercept = 3/4

y-intercept = -3

Step-by-step explanation:

4x - y = 3 (Given)

To find x-intercept plug y = 0 in the given equation.

4x - 0 = 3

4x = 3

x = 3/4

To find y-intercept plug x = 0 in the given equation.

4(0) - y = 3

0 - y = 3

- y = 3

y = -3

Please help me! What is 1 1/2+1/6

Answers

Answer:

10/6

Step-by-step explanation:

1 1/2=3/2

3/2: We need it to be /6. Multiply 3 by the top and bottom. 9/6

9/6+1/6=10/6

What is the area of the shaded region?

Answers

............, .......

What is the surface area?
9 mm
5 mm
2 mm
square millimeters

Answers

Step-by-step explanation:

TSA=2(l x b) +2(l x h) +2(b x h)

= 2x2x5+2x2x9+2x5x9

=20+36+90

=146mm squared

A small 2 on top of mm

Hope answer helps

help me plsssssssss on myquestion

Answers

Answer:

A) 110° and 109°

Step-by-step explanation:

Hope this helps.

Suppose that X is the number of cars per minute that pass through a certain intersection, and that X has the poisson distribution. If the mean of X is equal to 9 cars, what is the variance of X

Answers

The variance of a distribution is the square of the standard deviation

The variance of the data is 9

How to determine the variance

The given parameters are:

Mean = 9 cars

Distribution type = Poisson distribution

The variance and the mean of a Poisson distribution are equal.

So, we have:

Variance = 9 cars

Hence, the variance of the data is 9

Read more about variance at:

https://brainly.com/question/15858152

Please help: Determine the points at which the graph of the function has a horizontal tangent line.

Answers

[tex]\\ \tt\hookrightarrow f(x)=\dfrac{x^2}{x-6}[/tex]

Find inverse

[tex]\\ \tt\hookrightarrow y=\dfrac{x^2}{x-6}[/tex]

[tex]\\ \tt\hookrightarrow x=\dfrac{x^2+6y}{y}[/tex]

[tex]\\ \tt\hookrightarrow f'(x)=\dfrac{x^2+6x}{x}=x+6[/tex]

Now

[tex]\\ \tt\hookrightarrow x+6=0\implies x=-6[/tex]

Find Horizontal tangency

[tex]\\ \tt\hookrightarrow f(6)=\dfrac{(-6)^2}{-6-6}[/tex]

[tex]\\ \tt\hookrightarrow f(6)=\dfrac{36}{-12}=-3[/tex]

So

(x,y) =(-6,-3)

Someone help me plsss

Answers

Answer:

1 5/8

Step-by-step explanation:

Transform the expression

7/8 + 3/4

Write all numerators above the least common denominator 8

7+6/8 = 13/8 = 1 5/8

Please mark me as brainliest

Help plz due in 10min

Answers

Answer:

1.15

Step-by-step explanation:

Answer:

1.15

Step-by-step explanation:

So, first it would be helpful to change this from an improper fraction to a mixed number. Because we have an improper fraction now, we need to make this a mixed number by seeing how many times 23 can go into 20. Twenty-three can't go into 20, but if we take away 3 from 23 it can.

So, now we have 20/20 but with a remainder of 3/20. Because 20/20 = 1, it becomes a whole number of 1 and 3/20. Because there is a whole number of 1, we can put this as the whole number for the decimal. The fraction 3/20 is equal to the decimal 0.15, so we can now put the decimal together now that we have all the parts for the answer needed, which is 1.15.

I hope that this helps.

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