The radius of a circle is 3 kilometers. What is the circle's area

Answers

Answer 1

Answer:

28.27

Step-by-step explanation:

A=πr2=π·32≈28.27433

Answer 2

Answer:

If you're using 3.14 for pi, it's 28.26

Step-by-step explanation:


Related Questions

PLEASE HELP THIS IS TIMED!!

Answers

Answer:

(D) 3/10

Step-by-step explanation:

So its split into 10 different rates each and its on the third split So 3/10.

What is the answer ? I need help

Answers

Answer:

-42

Step-by-step explanation:

Multiply and combine like terms. Use^ for exponents. (3x+1)(2x^2 -9x+5)

Answers

Answer:

[tex]6x^{3} -25x^{2} +6x+5[/tex]

Step-by-step explanation:

I just need the answer if you don’t have a real answer but want to say something just comment it

Answers

Answer:

80??

Step-by-step explanation:

If AABC = ADEC,
ZB = 44º and ZE = 4x
A
B
С
E
x = [?]

Answers

Answer:

The angle at B is the same as the angle at E so equate them to each other to find x

2x+4=40°

2x=40-4

2x=36

x=36/2=18

Step-by-step explanation:

Hope this is helpful! stay safe and God Bless:)))


A sequence , satisfies the recurrence relation with
initial
conditions and . Find an explicit formula for the sequence.
+ k2 3) A sequence a,,a,,a z ..., satisfies the recurrence relation ax = 2x-1 + 2ax-2 with initial conditions a, = 2 and a = 7. Find an explicit formula for the sequence.

Answers

The explicit formula for the sequence [tex]\(a_n\)[/tex] is:

[tex]\(a_n = \begin{cases} 4n + 3 & \text{if } n \text{ is even} \\ 4n - 2 & \text{if } n \text{ is odd} \end{cases}\)[/tex]

To find an explicit formula for the sequence [tex]\(a_n\)[/tex] that satisfies the recurrence relation [tex]\(a_n = 2n-1 + 2a_{n-2}\)[/tex] with initial conditions [tex]\(a_1 = 2\)[/tex] and [tex]\(a_2 = 7\)[/tex], we can proceed as follows:

First, let's examine the first few terms of the sequence:

[tex]\(a_1 = 2\)\\\(a_2 = 7\)\\\(a_3 = 2(3) - 1 + 2a_1 = 5 + 2(2) = 9\)\\\(a_4 = 2(4) - 1 + 2a_2 = 8 + 2(7) = 22\)\\\(a_5 = 2(5) - 1 + 2a_3 = 9 + 2(9) = 27\)\\[/tex]

We can observe that the even-indexed terms [tex]\(a_2, a_4, a_6, \ldots\)[/tex] are increasing by a factor of 2, while the odd-indexed terms [tex]\(a_1, a_3, a_5, \ldots\)[/tex] are increasing by a factor of 3. This pattern suggests that we can split the sequence into two separate sequences:

For even-indexed terms:

[tex]\(b_n = a_{2n}\)[/tex]

For odd-indexed terms:

[tex]\(c_n = a_{2n-1}\)[/tex]

Let's find explicit formulas for both [tex](\(b_n\))[/tex] and [tex](\(c_n\))[/tex]:

1. Even-indexed terms [tex](\(b_n\))[/tex]:

The recurrence relation becomes:

[tex]\(b_n = 2(2n) - 1 + 2b_{n-1}\)[/tex]

To simplify the formula, let's rewrite [tex]\(b_n\)[/tex] as [tex]\(b_{n+1}\)[/tex] (i.e., shifting the index by 1):

[tex]\(b_{n+1} = 2(2n + 2) - 1 + 2b_{n}\)[/tex]

Subtracting the two equations, we get:

[tex]\(b_{n+1} - b_n = 4\)[/tex]

This is a simple arithmetic progression with a common difference of 4. To find an explicit formula for [tex]\(b_n\)[/tex], we can use the formula for the nth term of an arithmetic progression:

[tex]\(b_n = b_1 + (n - 1) \cdot \text{{common difference}}\)[/tex]

Substituting [tex]\(b_1 = a_2 = 7\)[/tex] and the common difference of 4, we have:

[tex]\(b_n = 7 + (n - 1) \cdot 4 = 4n + 3\)[/tex]

2. Odd-indexed terms [tex](\(c_n\))[/tex]:

The recurrence relation becomes:

[tex]\(c_n = 2(2n-1) - 1 + 2c_{n-1}\)[/tex]

Similar to before, let's rewrite [tex]\(c_n\)[/tex] as [tex]\(c_{n+1}\)[/tex]:

[tex]\(c_{n+1} = 2(2n + 1) - 1 + 2c_{n}\)[/tex]

Subtracting the two equations, we get:

[tex]\(c_{n+1} - c_n = 4\)[/tex]

Again, this is an arithmetic progression with a common difference of 4. Applying the formula for the nth term of an arithmetic progression:

[tex]\(c_n = c_1 + (n - 1) \cdot \text{{common difference}}\)[/tex]

Substituting [tex]\(c_1 = a_1 = 2\)[/tex] and the common difference of 4, we have:

[tex]\(c_n = 2 + (n - 1) \cdot 4 = 4n-2[/tex]

1) [tex]\cdot 4 = 4n - 2\)[/tex]

Now that we have explicit formulas for both [tex]\(b_n\)[/tex] and [tex]\(c_n\)[/tex], we can combine them to obtain the explicit formula for the original sequence [tex]\(a_n\)[/tex]:

For even-indexed terms, [tex]\(a_{2n} = b_n = 4n + 3\)[/tex]

For odd-indexed terms, [tex]\(a_{2n-1} = c_n = 4n - 2\)[/tex]

Therefore, the explicit formula for the sequence [tex]\(a_n\)[/tex] is:

[tex]\(a_n = \begin{cases} 4n + 3 & \text{if } n \text{ is even} \\ 4n - 2 & \text{if } n \text{ is odd} \end{cases}\)[/tex]

Learn more about Arithmetic Progression at:

https://brainly.com/question/30442577

#SPJ4

In order to check if blood pressure measurements change if one is sitting or standing, a study was conducted where systolic blood pressure of 35 patients were recorded while in sitting position and then again while standing. The comparison of systolic blood pressure in the two positions is an example of testing the difference between: a-Two means from independent populations b-Two population proportions c-Matched pairs from two dependent populations d-All of the above options are equally viable testing methods

Answers

The comparison of systolic blood pressure in the sitting and standing positions is an example of testing the difference between matched pairs from two dependent populations.

The scenario described involves measuring the systolic blood pressure of the same set of patients in two different positions (sitting and standing). This creates a dependency between the measurements because each patient serves as their own control. In this case, the appropriate statistical test would be a paired t-test or a related test for dependent samples.

Two means from independent populations: This option would be suitable if the measurements were taken from two different groups of patients who were independent of each other, but in this case, the same individuals were measured in both positions. Two population proportions: This option would be applicable if the data involved proportions or categorical variables, rather than continuous measurements like blood pressure.

Matched pairs from two dependent populations: This option accurately represents the scenario described, as the measurements were taken from the same individuals in both positions, making them dependent on each other.

LEARN MORE ABOUT blood pressure here: brainly.com/question/12653596

#SPJ11

!!!!!!!!!! !!!!!!!!!!!!

Answers

Answer:

B

Step-by-step explanation:

6.5 * 24 = 156

Therefore B

I need the length of DB and Measure of angle C in degrees!!!!!

Answers

Answer:

DB = 10

m∡C = 106°

Step-by-step explanation:

DE = EB

20x - 8 = 16x + 12

4x = 20

x = 5

DB = 5 doubled, or 10

m∡A + m∡D = 180

3y + 7 + 2y + 8 = 180

5y + 15 = 180

5y = 165

y = 33

m∡A = m∡C

m∡A = 3(33)+7 = 106°

m∡C = 106° also

Find the perimeter of the triangle.
A) 20
B) 51
C) 12 + 74
D) 12 + 47

Answers

D i know i’ve done it
The answer of the question is D

Plz help ASAP !!!!! Plzzz

Answers

Answer:

The second one

Step-by-step explanation:

She started with x dollars and then used 8 dollars to buy a football game ticket, so x-8. Then, she is left with 56 dollars, so x-8=56. Therefore, the second story represents the equation.

Factor 2x^2 - 3x = 2x - 2............Please?

Answers

Answer:

X = 1/2, 2

Step-by-step explanation:

= (2x-1)(x-2)

Answer:

OK I DON'T KNOW IF THIS IS IT BUT THE ANSWER IS POSSIBLY 0??? AND IF I DOESN'T WORK I'M SORRY

Step-by-step explanation:

HELP I NEED HELP ASAP
HELP I NEED HELP ASAP HELP I NEED HELP ASAP
HELP I NEED HELP ASAP HELP I NEED HELP ASAP
HELP I NEED HELP ASAP

Answers

Answer:

B

Step-by-step explanation:

Sarah's house is not shown in graph

Can anyone help find x?

Answers

Answer:

119

Step-by-step explanation:

Answer:

x= 61

Step-by-step explanation:

i think

a is (4,15) and b is (8,1) what is the midpoint of AB?


Answers

Answer:

(6,8)

Step-by-step explanation:

midpoint=(x1+x2)÷2,(y1+y2)÷2

a(4,15) b(8,1)

x=4+8=12÷2=6

y=15+1=16÷2=8

Answer=(6,8)

Consider the graph of the function f(x)=logx.
Match each transformation of function f with a feature of the transformed function.

Answers

Transformation of function f with a feature of the transformed function.

g(x)=-f(x-3) is vertical asymptote of x=3j(x)= f(x+3) is x-intercept of (-2,0)h(x)=3f(x)-3 is domain of (0, ∞)

What is asymptote?

An asymptote is a line that the graph of a function approaches as either x or y go to positive or negative infinity. There are three types of asymptotes: vertical, horizontal and oblique

Given function is : f(x)= log x

g(x)= -f(x+3)= - log(x+3)

g(x)=-f(x-3) is vertical asymptote of x=3

j(x)= f(x+3) = log (x+3) then

j(x)= f(x+3) is x-intercept of (-2,0)

Domain: As (0,∞),{x | x>0}

h(x)=3f(x)-3 is domain of (0, ∞)

Learn more about  asymptote here:

https://brainly.com/question/4084552

#SPJ2

Answer:

Step-by-step explanation:

What are the difference and similarities between a quadratic function and its transformation?

Answers

Well, since they are different degrees, there aren’t much similarities.

But both can have y-intercepts, x-intercepts, and can be graphed on a 2-dimensional plane. However, other than that, there may not be a lot of similarities.

A standard quadratic function is of the form ()=2++
f
(
x
)
=
a
x
2
+
b
x
+
c
and has the shape of a parabola, while a linear function is of the form ()=+
f
(
x
)
=
a
x
+
b
and is just a line.
7.5K viewsView upvotes

2




Related Questions (More Answers Below)

Help pls homework!! Sorry if I’m wasting time.

Answers

Answer:

Blanks top to bottom: 6^2, 36, 9, 108, 101

Step-by-step explanation:

Use PEMDAS which stands for parentheses, exponents, multiplication, division, addition, and subtraction. Listed in this specific order, you must look and solve for each one first, starting with parentheses.

4.

12 × ((4+2)^2/4) - 7

Solve for inside of parentheses first:

12 × ((6)^2/4) - 7

12 × (36/4) - 7

12 × 9 - 7

108 - 7

101

PLEASE HELP IF I DONT PASS THIS TEST I FAIL AND I DON'T UNDERSTAND IT AND I AM ON THE VERGE OF MENTAL BREAKDOWN

Answers

Answer: One of the ways you can do all this is by zearn or by listening by your teacher.

Answer:

1 e

2 a

3 b

4 c

5 d

Step-by-step explanation:

i did the answers to the first question i dont know the rest sorry

PLEASE HELP FAST WILL GIVE BRAINLIEST

Answers

Answer:

The answer is 25 degree because there is ( 8x-1)

What is the center? (X +3)^2+(y-11)^2=49

Answers

Answer:

I don't know the answer I am sorry I really need points to ask a important question sorry you can report me if you want but I want you to know that I really points

Which of the following inequalities has the graphed solution below?
zzGroup of answer choices

x − 1 ≥ 0

x − 1 ≤ 0

x + 1 ≥ 0

x + 1 ≤ 0

Answers

I think either x + 1 >_0 or x - 1 >_0, but I personally would choose x + 1 >_0

PLEASE HELP I HAVE 5 MINUTES TO DO THIS AND I HAVE NO CLUE HOW
WILL MARK BRAINLIEST!!

Answers

A
B
C
A
. I think I wish you the best

please help!!!!!!!!!

Answers

Answer: 15,000

Explanation: the question asks for the maximum profit so you look for the highest point and check the x value for it.

Hope this helped! :)

Evaluate x-2 for x=-3

Answers

-3-2= -5

Put in -3 in x

Answer:

-5

Step-by-step explanation:

Rewrite x - 2 as -3 - 2, which comes out to -5.

Luis rolled a number cube 60 times. He rolled the number 6 four times. Which is most likely the cause of the discrepancy between Luis’s experimental outcome and the predicted outcome?

Answers

Luis isnt a fortune teller and shouldnt try to be one

Find the length of side x in simplest radical form with a rational denominator.

Answers

Answer:

since it is Right angled isosceles triangle it's base side are equal

by using Pythagoras law

x²+x²=1²

2x²=1

x=√{1/2}or 0.707 or 0.71

Because of the Central Limit Theorem, the normal distribution is also a good approximation for the Poisson distribution. For a draw from a Poisson with parameter 1 = 37, what is the theoretical mean?

Answers

The theoretical mean for a draw from a Poisson distribution with parameter λ is equal to λ itself. In this case, λ = 37, so the theoretical mean is also 37.

Explanation:

The Poisson distribution is commonly used to model the number of events occurring within a fixed interval of time or space, when these events occur with a known average rate λ. The probability mass function of the Poisson distribution is given by P(X=k) = (e^(-λ) * λ^k) / k!, where X represents the random variable representing the number of events and k is the observed value.

The Central Limit Theorem states that when independent random variables are added, their sum tends toward a normal distribution, regardless of the shape of the original distribution. For a Poisson distribution, as the parameter λ increases, the distribution becomes more symmetric and bell-shaped, resembling a normal distribution.

Since the mean of a Poisson distribution is equal to its parameter λ, the theoretical mean for a draw from a Poisson distribution with parameter 1 = 37 is 37. This means that, on average, 37 events are expected to occur within the given interval.

Know more about the normal distribution click here:

https://brainly.com/question/15103234

#SPJ11

The full weight of a brand of a pack of sweet potato fries is a random variable with µ = 350 g and σ= 4.1 8. Assume that you pick a random pack from the population.
a. Find the proportion of packs that contain less than 340 g?
b. How likely is it for a pack to contain 330 g?

Answers

The proportion of packs that contain less than 340g is approximately 0.0918 or 9.18%. The likelihood of a pack containing exactly 330g cannot be determined without additional information.

To find the proportion of packs that contain less than 340g, we need to calculate the z-score and use the standard normal distribution table. The Calculating z-score:

z = (x - µ) / σ

Where x is the value we want to find the proportion for (in this case, 340g), µ is the mean (350g), and σ is the standard deviation (4.18g).

Substituting the values, we have:

z = (340 - 350) / 4.18 ≈ -2.39

Next, we look up the corresponding z-score in the standard normal distribution table. The area to the left of -2.39 represents the proportion of packs that contain less than 340g. Consulting the table, we find that the area is approximately 0.0091 or 0.91%.

Therefore, the proportion of packs that contain less than 340g is approximately 0.0918 or 9.18%.

To determine the likelihood of a pack containing exactly 330g, we need more information. Specifically, we would need the probability density function (PDF) of the distribution to calculate the exact likelihood. Without the PDF, we cannot determine the likelihood of a specific weight like 330g.

Learn more about proportion here:

brainly.com/question/10644018

#SPJ11

HELP NO LINKS JUST ANSWER DUE TODAY

Answers

The value of x is 4.4

This is because to get from 10 to 4 you divide to get a scale image. 10 divided by 4 = 2.5. So to get the same scale length on the other side of the triangle you divide the side length of 11 by 2.5 which = 4.4
I hope this helps! Good luck on your homework!
4/10=x/11

0.4=x/11

x=0.4•11

x=4.4
Other Questions
when the major component of an item experiences a price increase, the demand for the item may become more elastic. T/F? In a Miller cycle (states labeled below), assume we know state 1 (the intake state) and thetwo compression ratios, CR1=v1/v3 and CR = v4/v3. Find an expression for the minimum allowableheat release so that P4 = P5. At this heat release, the Miller cycle would become an Atkinson cycle.Below this heat release, CR would have to be adjusted. 2. Find all values of z for which the following equations hold. 1 (a) e* = -16. public relations society of america board of ethics and professional standards code of ethics case study series public relations ethics case study Which explanations should the nurse incorporate into the discussion with the parents concerning the recommendation to delay circumcision? A machine with a cost of $58,800 has an estimated residual value of $3,047 and an estimated life of 5 years or 19,458 hours. What is the amount of depreciation for the second full year, using the double-declining-balance method?a.$23,520.00b.$22,301.20c.$11,760.00d.$14,112.00 Describe resources and explain the three general categories economist classify as resources. which group is more susceptible to hormonal changes? a. toddlers b. teenagers c. elderly men d. elderly women please select the best answer from the choices provided. a b c d An electrical company manufactures light bulbs for LCD projectors with life spans that are approximately normally distributed. A randomly selected sample of 29 lights bulbs has a mean life span of 550 hours with a sample standard deviation of 45 hours. Compute the margin of error at a 95% confidence level (round off to the nearest hundredths). Suppose market demand for mobile operators is expressed by Q=90-3Pwhere Q is measured by calls in hours.There are three firms that supply the market: TRCell,VFone, and Avea.Avea provide hourly calls at a unit cost of 20$, where asTRCell& VFone has a unit cost equal to 10Suppose firms are competing inprice( no capacity constraints )a)What is the market price? Why?b)Howmuch does each firm sell in Bertrand equilibrium?c)What are firms profits?d)Is there any way for all firms to get higher profits Every network attached to the internet has at least one server designated as a dns server.a. trueb.false after simplifying, how many terms does the expression 4y - 6 y 2 - 9 contain? a. 4 terms b. 2 terms c. 1 term d. 3 terms what is type of cloud is especially prevalent when the atmosphere is very stable near the base of a thunderstorm. Assume labor is the only variable input. Which of the following best explains why marginal cost (MC) is increasing when marginal product (MP) is decreasing? White light is sent through an interface of a 100% (w/v) glycerol solution (n1 = 1.474) and a 20% (w/v) sucrose solution (n2=1.364) At an angle of: A) Theta=33 degree, determine the angle of Theta2 in degrees (*) B) Theta 1 =0degree, determine the angle or Theta2 in degrees (*) A) Theta2= Number degree B) Theta2= Number degree please answer all requirementsIsland Novelties, Incorporated, of Palau makes two products-Hawaiian Fantasy and Tahitian Joy. Each product's selling price, variable expense per unit and annual sales volume are as follows: Selling p You are to make monthly deposits of $700 into a retirement account that pays an APR of 10.2 percent compounded monthly.If your first deposit will be made one month from now, how large will your retirement account be in 32 years? (Do not round intermediate calculations and round your answer to 2 decimal places)Retirement account value in 32 years = ? Write a function named avg3 that accepts three numbers and returns their average.Example: avg3(4, 2, 6) => 4 avg3(3.14159, 2.71, 2.23) => 2.69653 Assume that the amounts of weight that male college students gain their freshman year are normally distributed with a mean of u= 1.3 kg and a standard deviation of o= 4.8 kg. Complete parts (a) through (c) below.a. If 1 male college student is randomly selected, find the probability that he gains 0 kg and 3 kg during freshman year.b. If 4 male college students are randomly selected, find the probability that their mean weight gain during freshman year is between 0 kg and 3 kg.c. Why can the normal distribution be used in part (b), even though the sample size does not exceed 30? A hammer in an out-of-tune piano hits two strings and produces beats of 4 Hz. One of the strings is tuned to 129 Hz.Randomized VariablesfB = 4 Hzf1 = 129 HzPart (a) What is the highest frequency the other string could have?Part (b) What is the lowest frequency the other string could have?