what is the area of a circle​

Answers

Answer 1

The area of a circle with a radius of r is [tex]pi r^2[/tex]

What Is The Area Of A Circle

Related Questions

In a circle, an angle measuring 8.2 radians intercepts an arc of length 30. Find the
radius of the circle to the nearest ioth.

Answers

Answer: r=3.659 or 3.7

Step-by-step explanation:

What value of c makes this polynomial a perfect square trinomial?
x² + 4x + c

Answers

Answer:

4

Step-by-step explanation:

An airplane is traveling at an altitude of 30,000 feet
above sea level and needs to get above 35,000 feet.
The airplane can climb 500 feet every minute. How
long will the airplane need to travel to get above 35,000
feet?

Answers

Answer:

Solution in photo

Solve the inequality and enter your solution as an inequality in the box below,
using "<=" for < or ">=" for 2 if necessary.
3(4x + 1) < 39

Answers

Answer:

x<3

Step-by-step explanation:

Help pleasee
I'm doing homework and i cannot understand this one and it's due soon

Answers

Answer:

2001.19

Step-by-step explanation:

V=πr^2h

π×7^2×13=2001.19

helpppppppppppppppppppp

Answers

Answer:

c

Step-by-step explanation:

The answer is c). X>-5

Find the value of the trig function indicated

Answers

Answer:

A. (2√13)/13

Step-by-step explanation:

Recall, SOHCAHTOA.

Thus,

Cos θ = Adjacent/Hypotenuse

Adjacent = 16

Hypotenuse = 8√13

Therefore,

Cos θ = 16/(8√13)

Rationalize

Cos θ = (16*√13)/(8√13*√13)

Cos θ = (16√13)/(8*13) = (2√13)/13

Orders arrive at a Web site according to a Poisson process with a mean of 11 per hour. Determine the following: a) Probability of no orders in five minutes. Round your answer to three decimal places (e.g. 98.765). Enter your answer in accordance to the item a) of the question statement b) Probability of 3 or more orders in five minutes. Round your answer to three decimal places (e.g. 98.765). Enter your answer in accordance to the item b) of the question statement c) Length of a time interval such that the probability of no orders in an interval of this length is 0.001. Round your answer to two decimal places (e.g. 98.76).

Answers

Answer:

a) 0.39984 = 39.984% probability of no orders in five minutes.

b) 0.06563 = 6.563% probability of 3 or more orders in five minutes.

c) The length of time is 0.63 hours

Step-by-step explanation:

In a Poisson distribution, the probability that X represents the number of successes of a random variable is given by the following formula:

[tex]P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}[/tex]

In which

x is the number of sucesses

e = 2.71828 is the Euler number

[tex]\mu[/tex] is the mean in the given interval.

Orders arrive at a Web site according to a Poisson process with a mean of 11 per hour.

This means that [tex]\mu = 11h[/tex], in which h is the number of hours.

a) Probability of no orders in five minutes.

Five minutes means that [tex]h = \frac{5}{60} = \frac{1}{12}[/tex], so [tex]\mu = \frac{11}{12} = 0.9167[/tex]

This probability is P(X = 0). So

[tex]P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}[/tex]

[tex]P(X = 0) = \frac{e^{-0.9167}*(0.9167)^{0}}{(0)!} = 0.39984[/tex]

0.39984 = 39.984% probability of no orders in five minutes.

b) Probability of 3 or more orders in five minutes.

This is:

[tex]P(X \geq 3) = 1 - P(X < 3)[/tex]

In which

[tex]P(X < 3) = P(X = 0) + P(X = 1) + P(X = 2)[/tex]

So

[tex]P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}[/tex]

[tex]P(X = 0) = \frac{e^{-0.9167}*(0.9167)^{0}}{(0)!} = 0.39984[/tex]

[tex]P(X = 1) = \frac{e^{-0.9167}*(0.9167)^{1}}{(1)!} = 0.36653[/tex]

[tex]P(X = 2) = \frac{e^{-0.9167}*(0.9167)^{2}}{(2)!} = 0.168[/tex]

[tex]P(X < 3) = P(X = 0) + P(X = 1) + P(X = 2) = 0.39984 + 0.36653 + 0.168 = 0.93437[/tex]

[tex]P(X \geq 3) = 1 - P(X < 3) = 1 - 0.93437 = 0.06563[/tex]

0.06563 = 6.563% probability of 3 or more orders in five minutes.

c) Length of a time interval such that the probability of no orders in an interval of this length is 0.001.

This is h for which:

[tex]P(X = 0) = 0.001[/tex]

We have that:

[tex]P(X = 0) = e^{-\mu}[/tex]

And

[tex]\mu = 11h[/tex]

So

[tex]P(X = 0) = 0.001[/tex]

[tex]e^{-11h} = 0.001[/tex]

[tex]\ln{e^{-11h}} = \ln{0.001}[/tex]

[tex]-11h = \ln{0.001}[/tex]

[tex]h =-\frac{\ln{0.001}}{11}[/tex]

[tex]h = 0.63[/tex]

The length of time is 0.63 hours

HELP!!!!
PLSSSSSSSSSSSSSS

Answers

Answer:

For 20

X= 120

Step-by-step explanation:

Offering a lot of points for this

Answers

Answer:

6x - 1

Step-by-step explanation:

Add 3x and 3x.

6x − 1

ídk hope this helps... ( ̄▽ ̄)ノ

Answer:

6x-1

Step-by-step explanation:

My sister got stuck on these can you tell me the answers?

Answers

don’t click the link above it’s a scam. also i think you measure the eraser using a ruler and that’s the answer lol

How are these two scenarios different: 3 people went to the zoo and tickets cost
$15 each in comparison to: 3 people go to the carnival, where tickets cost $15
each and parking costs $10.*
FOR BRAINLIST!!!!

Answers

3 people for the zoo would only cost $45 in total due to free parking but 3 people for the carnival would cost $45 plus $30 for parking for each person making it a total of $75 in comparison to $45 dollars for the zoo

I need help with this question please

Answers

9514 1404 393

Answer:

  y = -x -2

Step-by-step explanation:

The line crosses the y-axis at y = -2, so that is the y-intercept.

The slope is the ratio of "rise" to "run." The points on the graph show a "rise" of -3 for a "run" of 3.

  m = rise/run = -3/3 = -1

Then the slope-intercept equation is ...

  y = mx +b . . . . . slope m, y-intercept b

  y = -x -2 . . . . . . . using m=-1, b=-2

Oliver was on the internet researching prices of new and used cars. One website has 47 cars for sale, 15 of which were convertibles and 26 of which were station wagons. If Oliver randomly chose to look at 4 of the cars on the website, what is the probability that 2 of the chosen cars are convertibles and 2 are station wagons? Is it a permutation or combination?

Answers

Answer: It a permutation

Step-by-step explanation: Hope this help :D

What is a formula that can be used to find the area of one triangular section of the door? How do you know the formula will work? (3 points) 30 pointss pls answer hurry

Answers

Answer:

The other guy's correct!

Step-by-step explanation:

What shape is this no links please help me no links

Answers

Answer:

Rectangular Prism.

Answer:

Rectangular prism

Explanation:

It's common sense

what is importance of banks to ecomics​

Answers

Answer:

They do transactions from such a large distance

Step-by-step explanation:

Banks make it far easier for a complex economy to carry out the extraordinary range of transactions that occur in goods, labor, and financial capital markets. Banks are a critical intermediary in what is called the payment system, which helps an economy exchange goods and services for money or other financial assets.

Which is the solution to the equation
below?
-3=t- 12
A-9
C 9
B 4
D 15

Answers

ANSWER:
9 (C)

hope this helps


Find dy/dx
for 4 tan^2x - xy^2= sin2y by using implicit differentiation

Answers

Answer:

Y=bx+c

Step-by-step explanation:

That should be right

Answer:

Y=bx+c

Step-by-step explanation:

Kristy is going to a college where tuition is $8,000 per year. She has a scholarship that pays 80% of tuition. Her aunt is giving her $1,000 per year. How much will Kristy need to borrow to pay tuition each year?​

Answers

8,000 x .80= 6,400
8,000-6,400= 1,600
1,600-1,000= 600 that is the amount of tuition she will need to pay each year.

Write the expression in radical form.
x 5/4

Answers

The expression [tex]x^{(5/4)[/tex] can be expressed in radical form as either (fourth root of[tex]x^5[/tex] or [tex](\sqrt{x} )^5.[/tex]

To express the expression "[tex]x^{(5/4)[/tex]" in radical form, we can rewrite it as the fourth root of x raised to the power of 5.

Let's break down the process step by step:

Step 1: Start with the exponent "5/4."

Step 2: Express the exponent as a fraction: 5/4.

Step 3: Rewrite the fraction as a radical expression by taking the denominator (4) as the index of the radical.

Step 4: Place the base (x) inside the radical.

Step 5: Raise the base to the power of the numerator (5) outside the radical.

Putting it all together, we have:

[tex]x^{(5/4)} = (fourth root of x)^5[/tex]

In radical form,[tex]x^{(5/4)}[/tex] can be written as the fifth power of the fourth root of x.

This representation emphasizes that we take the fourth root of x first and then raise it to the power of 5. The fourth root indicates that we are finding the value that, when raised to the fourth power, gives us x. The fifth power signifies that we are multiplying that value by itself five times.

Note that the fourth root can also be expressed using the radical symbol (√), so the radical form of [tex]x^{(5/4)[/tex]can be written as[tex](\sqrt{x} )^5.[/tex]

In conclusion, the expression [tex]x^{(5/4)[/tex] can be expressed in radical form as either (fourth root of x)^5 or [tex](\sqrt{x} )^5.[/tex]

For more question on radical visit:

https://brainly.com/question/27847549

#SPJ8

What is the answer please help no links please help

Answers

The correct answer would be 380

You are buying a new internet service. The service costs $75 per month. In the equation below, d is the total number of dollars that you pay for your service, and t is the time (in months) that you keep the service.
The relationship between these two variables can be expressed by the following equation:
d=75t
Identify the dependent and independent variables.


Dependent variable Independent variable
The total number of dollars you pay {} {}
The time in months you keep your service {} {}

Answers

Answer:

independent Variable

Step-by-step explanation:

Because we already know that x=75, and that a independent variable is An independent variable is a variable that represents a quantity that is being manipulated in an experiment. x is often the variable used to represent the independent variable in an equation.

What is the median value of the data set shown on the line plot?

Enter your answer in the box.

[_]

Answers

Answer:

6 is the median...

Step-by-step explanation:

Well first off, you need to know what a median is.

Let's break down the root/suffix/prefix.

Med= Meduim/middle

Median means the middle value.

Let's look at our data:

Skip zero

1-1- First

2-1- second

3-2-third

4-2-forth

5-3 fifth

6-4 - Six is in the middle of the line, making it the median.

7-3 seventh

8-3 eighth

9-2 ninth

10- 0 tenth

11-1 eleventh

12-0 twelfth

What's in between 1-12?  6!!! There's our answer!!!

I hope this helped you! Have a great day!!!

Please help! What is the volume of the cylinder?

Answer and explanation please! <3

Answers

Answer:

3386.64[tex]m^{3}[/tex] (rounded to 2 decimal places)

Step-by-step explanation:

Volume of a cylinder = π[tex]r^{2}[/tex]h

                                   = π x [tex]7^{2}[/tex] x 22

                                   = π x 49 x 22

                                   = 3386.63688057

                                   = 3386.64[tex]m^{3}[/tex] (rounded to 2 decimal places)

sorry if this is not right and hope this helps :)

               

What's 1+1=? Pls help

Answers

Answer:

2

Step-by-step explanation:

USE A CALCULATOR OR USE YOUR FINGERS

Answer: I-i think its 8... wait no its 2!

Step-by-step explanation:

Anyone else been saved by brainly?

Answers

Answer:

Yes, many times actually. I've aced tests because of brainly

Step-by-step explanation:

How to you draw 1/2 slope on a graph?​

Answers

Answer:

the coordiantes for the first few are (0,0) (2,1) (4,2) (6,3) etc

Step-by-step explanation:

Quadrilateral ABCD is translated 2 units to the left and 5 units down to create quadrilateral A'B'C'D'.
D
6.1
1.4
А A
2.2
4.5
B
D
36
А?
36°
В?

Answers

Answer: 14.2

Step-by-step explanation: Khan Academy

Which triangles are right triangles?
Select ALL correct answers.

Answers

Answer:

2 , 3 ,4

Step-by-step explanation:

to find the right triangle use the pythagorian method

A^2+B^2= C^2

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(Enter your response rounded to four decimal places.) During most of the sixteenth century, which of the following was the wealthiest nation in Europe? Select one: A. England B. Spain C. France D. Portugal. 100 - x2 + 15, cuando x = 9