Solve for pi please.

Solve For Pi Please.

Answers

Answer 1

Answer:

2A / r^2 = pi

Step-by-step explanation:

A = 1/2 pi r^2

Multiply by 2

2A = pi r^2

Divide by r^2

2A / r^2 =  pi r^2/r^2

2A / r^2 = pi


Related Questions

what property does this equation use.

If LM = NP , then NP = LM

-distributive
-substitution
-division
-subtraction
-multiplication
-transitive
-reflexive
-symmetric

Answers

Answer:

reflexive

Step-by-step explanation:

memorize it as the equal sign is a mirror that reflects so its the same!

A card is picked a random from the following set:
6,7,8,9
What is P(9)? Write as a Percentage

Answers

Answer:

25%

Step-by-step explanation:

There are 4 cards. Each one is a different number.

Only one card is a 9.

p(9) = 1/4 = 0.25 = 25%

Solve the equation
-4(-3+2p) = -2(6p - 1).
Need help fast please

Answers

Answer:

-2.4

Step-by-step explanation:

distribute the -4 and -2

add 12p to both sides

subtract 12 from both sides

divide

how do i solve this?

Answers

you divide -432 by -72 and so on you’ll get 6 so the patter or data is that it’s being divided by 6 each time.

A farmers has 17 sheep and all but nine die. How many are left?​

Answers

Answer:

9 sheeps.

Step-by-step explanation:

Note the usage of words.

If you remove "but nine", you will be left with "all... die", which means that he will have 0 sheep. However, the usage of 9 implies that there are some remaining; The number attached suggest the amount left.

9 sheep are left.

~

Answer:

9

Step-by-step explanation:

What is the product of –5 and –8?

–40
–13
13
40

Answers

Answer:

40

Step-by-step explanation:

This is the answer because:

1) Whenever you are multiplying negative integers, remeber these rules:

Negative x Positive = Negative

Positive x Negative = Negative

Negative x Negative = Positive

Positive x Positive = Positive

2) Since -5 and -8 are both positive numbers, the answer will be a positive product:

5 x 8 = 40

Therefore, the answer is 40.

Hope this helps! :D

Answer:

D

Step-by-step explanation:

EdgeCourseWare 2021

If m AOC=85, m BOC =2x+10, and m AOB=4x-15, find the degree measure of BOC and AOB

Answers

Answer:

angle AOC=85

also

angle AOC = angle AOB + Angle BOC

85= 2x+10+4x-15

or, 6x= 90

x=15

BOC=2x+10= 2*15+10=40

angle AOB = 4x-15=4*15-10=5=45

A national survey of middle-school students asks which subject is most challenging. Which of these samples is a representative sample? A. 372 sixth-graders in a certain town B. 972 seventh-graders in a certain county C. 619 eighth-graders in different states D. 400 students from various states, representing different grades, 6–8

Answers

The answer would be D, since a representative sample is a set chosen from a larger statistical population.

Help please.. for my sister .... I’m older and I don’t get this

Answers

I’d say L maybe? I’m sorry if it’s wrong but maybe try googling it before choosing

Answer: C. Point M

Step-by-step explanation:

There are 10 tick marks. The tick marks could be guessed to be 0.05, 0.1, 0.15, 0.2, 0.25, 0.3, 0.35, 0.4, 0.45, 0.50. 1/3 as a decimal is 0.33. The point should be between the(6th tick mark) 0.3 and (7th tick mark) 0.35 based on the assumed tick marks. Looking at the number line, the point that is between the 6th and 7th tick mark is M. Therefore, the answer is Point M.

Solve.

h + 14 = -14

h =

Answers

Answer:

h= -28

Step-by-step explanation:

h+14=-14 isolate h by subtracting 14 on both sides

h= -28

Answer:

h=-28

Step-by-step explanation:

k byeeeeeeeeeeeeee:)

5/8 divided by 5 what is the answer in fraction form

Answers

Answer:

1/8

Step-by-step explanation:

Melissa read 4 books each week for 4 weeks. Amanda read 5 books a week for 4 weeks. How many more did Amanda read? Choose the answer that has the correct expression and the correct answer to the question .

Answers

Answer:

Amanda read 4 for than Melissa.

Step-by-step explanation:

Amanda read 20 and Melissa read 16. 20-16=4.

Answer:

5 x 4 – 4 x 4; Amanda read 4 more books than Melissa

Step-by-step explanation:

"How many more" means to subtract the products, not add them. Also, do the multiplication first before you subtract.


A local donut shop charged $6.50 for a dozen and provided a coupon in the newspaper for $1.50
off an order. Since the donut shop has gained popularity they have changed their coupon which
now provides a discount of only half their original coupon's value. What is the equation that
represents the value of a customer's order who uses the new coupon with their order?

Answers

The red one y=6.50x-0.75

In the early spring, the trout at Big Blue Lake swim at a depth of 30 feet below sea level.
When the lake warms up in the summer, the trout swim 20 feet deeper than that.
At what position relative to sea level do the trout swim in the summer?

Answers

Given :

In the early spring, the trout at Big Blue Lake swim at a depth of 30 feet below sea level.

When the lake warms up in the summer, the trout swim 20 feet deeper than that , d = 20 feet .

To Find :

At what position relative to sea level do the trout swim in the summer.

Solution :

Depth in spring from surface , [tex]D_s=30\ feet[/tex] .

Let , depth in summer is D .

Now , depth in summer relative to sea-level is :

[tex]D=D_s+d\\\\D=30+20\ feet\\\\D=50\ feet[/tex]

Therefore , trout swim 50 feet deep below the sea level in the summer .

Hence , this is the required solution .

Answer:

-50

Step-by-step explanation:

bcuz it is

The frequency table shows the distribution of 1,200 students at a high school. To the nearest percent, what percentage of females are freshmen or sophomores? Frequency Table of Student at a High School Seniors Total Freshmen Sophomores Juniors 168 128 166 146 Males 608 Females 160 592 134 162 136 328 264 306 302 1.200 Total 27% 50% 53% 23% My Progress​

Answers

Answer:

23 percent

Step-by-step explanation:

The percentage of females who are freshmen or sophomores will be 50%.

What is the percentage?

The quantity of anything is stated as though it were a fraction of a hundred. A quarter of 100 can be used to express the ratio. Per 100 is what the term percent signifies. The symbol 'percent' is used to symbolize it.

The frequency table shows the distribution of 1,200 students at a high school.

The frequency table is given below.

Then the percentage of females who are freshmen or sophomores will be

P = (134 + 162) / 592 x 100

P = 296 / 592 x 100

P = 0.5 x 100

P = 50%

Thus, the correct option is B.

More about the percentage link is given below.

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What is the image point of (6, 1) after a translation left 5 units and down 1 unit?

Answers

(1, 0) would be the answer

A gamestop you can buy a xbox one foe 150.00 and each game to go with it would cost 24.00 or you can buy a playstation 4 for 180.00 abd esch game for 20.00

Answers

Answer:

Let's write two linear equations:

For the Xbox, we have:

Price per console (you pay it only once) = $150.

Price per game = $24

Then, the total price if you buy x games, you have:

P1(x) = $150 + $24*x

For the Playstation we have:

Price per console (again yo pay it only once) = $180

Price per game = $20

So if you buy x games, the total price is:

P2(x) = $180 + $20*x.

Now, we can find the number x such that both prices are equal

P1(x) = P2(x)

$150 + $24*x =  $180 + $20*x.

let's solve this for x.

$24*x - $20*x = $180 - $150

$4*x = $30

x = $30/$4 = 7.5

What does this mean?

If you buy less than 7.5 games (7 or less) then the Xbox will be cheaper, because the y-intercept is smaller.

If you buy more than 7.5 games (8 or more) then the Playstation will be cheaper, because the price per game is smaller.

Could someone uh, help me? I’m a bit confused.

Answers

1
_
16 for the first one

is the answer A),B),C) or D)?

Answers

Answer:

D) 2a-6

Step-by-step explanation:

Graham sold 6 less = -6

Than double what Adriania sold. = 2a

2a - 6

a recipe for one pumpkin pie calls for 1 1/4 cups of sugar Elena only has 1/2 cup of sugar and she needs to make for pumpkin pies how many more cups of sugar does Elena need to make All 4 pies?​

Answers

Answer: she would need four and a half cups more of sugar.

Step-by-step explanation:

You have to add together all of them sugar she would have needed so (1 1/4 times 4) and then subtract what she already had and that gives you 4 and 1/2 cups she would need. Hope this helps

Answer: 4 and 1/2

Step-by-step explanation:

You add together all of the sugar that she would have needed which is 1 1/4 * 4 and then subtract what she already had before which would give you 4 and 1/2 cups she would need.

y = x - 2 and y=-2x +7

Answers

Answer:

x = 3 , y = 1

Step-by-step explanation:

Solve the following system:

{y = x - 2 | (equation 1)

y = 7 - 2 x | (equation 2)

Express the system in standard form:

{-x + y = -2 | (equation 1)

2 x + y = 7 | (equation 2)

Swap equation 1 with equation 2:

{2 x + y = 7 | (equation 1)

-x + y = -2 | (equation 2)

Add 1/2 × (equation 1) to equation 2:

{2 x + y = 7 | (equation 1)

0 x+(3 y)/2 = 3/2 | (equation 2)

Multiply equation 2 by 2/3:

{2 x + y = 7 | (equation 1)

0 x+y = 1 | (equation 2)

Subtract equation 2 from equation 1:

{2 x+0 y = 6 | (equation 1)

0 x+y = 1 | (equation 2)

Divide equation 1 by 2:

{x+0 y = 3 | (equation 1)

0 x+y = 1 | (equation 2)

Collect results:

Answer: {x = 3 , y = 1

[tex]\huge\boxed{\boxed{\bold{(3, 1)}}}[/tex]

[tex]\hrulefill[/tex]

I'm assuming you need to find the solution to this system of equations (where the lines intersect).

We can use the substitution method to solve this system. Take the value of [tex]y[/tex] from the second equation and substitute it into the first:

[tex]-2x+7=x-2[/tex]

Add [tex]2x[/tex] to both sides of the new equation:

[tex]7=3x-2[/tex]

Now add [tex]2[/tex] to both sides of the equation:

[tex]9=3x[/tex]

Divide both sides by [tex]3[/tex]:

[tex]\boxed{3}=x[/tex]

Now let's solve for [tex]y[/tex] by substituting the known value of [tex]x[/tex] into the first equation:

[tex]y=3-2[/tex]

Simplify using subtraction:

[tex]y=\boxed{1}[/tex]

This means our solution is:

[tex]\large\boxed{(3, 1)}[/tex]

Three is less than the sum of a number 8 and 4

Answers

Answer:

3<x+12

Step-by-step explanation:

please help me out am so confused ​

Answers

Answer:

(i) 2197

Step-by-step explanation:

(i) 13^3

=  (10+3)^3

=  10^3 + 3^3 + 3(10)(3) (10+3)

=  1000 + 27 + 90(13)

=  1027 + 1170

= 2197

Similarly you can solve the other two.

The store charges $1.95 for a pack of 5 pens. What is the individual price per pen ?
A - .50
B- $1.95
C- $2.56
D- .39
does anyone know or can explain ?

Answers

The answer is D, 1.95 divided by 5 equals 0.39.

Classity 2 and 1 using all relationships that apply.

Supplementary
Vertical
Complementary
Adjacent
Linear Pair







7
Pls help

Answers

Answer:

Vertical Angles

Step-by-step explanation:

Vertical Angles are the angles opposite each other when two lines cross.

It is found that angle 2 and angle 1 are vertically opposite angles.

What is vertically opposite angles?

The vertically opposite angles are those angles that are opposite one another at a specific vertex and are created by two straight intersecting lines.

Thus, Each of the pairs of the opposite angles made by two intersecting lines are called vertical angles.

Also, When you slice a given object vertically (perpendicular to the ground level), then the sliced surface is called vertical cross section.

WE have to Classity 2 and 1 using all relationships that apply.

Therefore, we can see that angle 2 and angle 1 are vertically opposite angles.

Learn more about vertically opposite angles;

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4+(9x2)÷(4-1)-4 simplify by using order of operations

Answers

Hi . I hope this answer helps!

The answer is 6

4+ (9*2)/ (4-1)-4

4+ 18 /3 -4

PEMDAS Rules state that you have to do division first in this equation

4+6-4

PEMDAS states that you have to do addition then subtraction but it depends if subtraction is first in the equation. BUT in this equation you have to addition.

10-4

6

I hope this helps and I hope you have a great day

The required simplified value of the expression is 6.

Given that,
An expression is given 4+(9x2)÷(4-1)-4,
To simplify the given expression.

What is simplification?

The process in mathematics to operate and interpret the function to make the function simple or more understandable is called simplifying and the process is called simplification.

What is arithmetic?

In mathematics, it deals with numbers of operations according to the statements.

simplification
= 4+(9x2)÷(4-1)-4
Step 1 applies to the multiply and subtraction operation in the parenthesis.|
= 4 + (18) ÷ (3) - 4
Step 2 following the PEMDAS rule division of 18 by 3,
= 4 + 6 - 4
Step 3 association of termes,
= 6

Thus, the required simplified value of the expression is 6.

Learn more about simplification here:
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solve for v bellow. 8(z-5)=16

Answers

Answer:

z=7

Step-by-step explanation:

8(z-5)=16

Divide by 8

8/8(z-5)=16/8

z-5 = 2

Add 5 to each side

z-5+5 = 2+5

z = 7

Answer:

z = 7

Step-by-step explanation:

Expand 8 ( z - 5 ) = 16 first.

8z - 40 = 16

Move 40 to the other side.

8z = 40 + 16

8z = 56

z = 7

SIMPLE: 25 pts!!! Find the area A of the polygon with the given vertices:)

Answers

Hey there! I'm happy to help!

We see that points A and B are on the same horizontal line, and and they are 10 units apart. C and D are on their own horizontal line and they are also 10 apart. This means that this is a square, so we multiply one side by itself

10²=100

The area is 100 square units.

Have a wonderful day! :D

The coordinates of the point of the way from A to B are?

(Type an ordered pair.)

Answers

ANSWER: (12,11), (x,y)

12 steps to the right on the x-axismaking the value a plus, and 11 steps up on the y axis making the numeral positive as well.

The population of a certain city decreased by 43,000 people.
Write a signed number to represent this population change.

Answers

The answer to your question would be x = -43k

A signed number to represent a given population change is -43,000.

What is the number system?

A number system is defined as a way to represent numbers on the number line using a set of symbols and approaches. These symbols, which are known as digits, are numbered 0 through 9.

Since the population of a certain city decreased by 43,000 people.

The negative sign indicates that the population decreased, which means there was a decrease in the quantity of 43,000 people.

Thus, we can population change is shown by -43,000.

Hence, a signed number to represent this population change is -43,000.

Learn more about the number system here:

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