Martina used 3 as the value of pi to estimate the area of a circular patio that had a diameter of 26 ft.
What was Martina's estimate?

Answers

Answer 1

Answer:

507 ft²

Step-by-step explanation:

the area (A) of a circle is calculated as

A = πr² ( r is the radius )

given diameter = 26 then r = 26 ÷ 2 = 13 , so

A = π × 13² ≈ 3 × 169 = 507 ft²


Related Questions

with which measurement procedure is the target behavior recorded if it occurs at any point within the scoring interval?

Answers

If the target behavior is recorded whenever it occurs at any point within the scoring interval, the measurement procedure used is called continuous recording or event recording. This method involves observing and recording each instance of the behavior without considering its duration or intensity.

Continuous recording is typically used when the target behavior is discrete and occurs relatively infrequently or has a short duration. With this measurement procedure, each occurrence of the behavior is recorded as a separate event, regardless of when it starts or ends within the scoring interval. Examples of behaviors that can be measured using continuous recording include vocalizations, hand clapping, or instances of aggression.

Continuous recording provides a comprehensive account of the frequency or rate at which the behavior occurs, allowing for a detailed analysis of its occurrence patterns. This method is particularly useful when a precise count of behavior instances is needed and when the duration or intensity of the behavior is not a focus of measurement.

Learn more about interval here: brainly.com/question/29466566

#SPJ11

Seis restado de c es mayor que 24

Answers

The given statement in the form of inequality is given as -

c - 6 > 24.

What is an inequality? What are algebraic expressions?

An inequality is used to make unequal comparisons between two or more expressions. For example → ax + b > c

In mathematics, an expression or mathematical expression is a finite combination of symbols that is well-formed according to rules that depend on the context.

Mathematical symbols can designate numbers (constants), variables, operations, functions, brackets, punctuation, and grouping to help determine order of operations and other aspects of logical syntax.

Given is the statement as -

"Six subtracted from c is greater than 24"

We can write the inequality as -

c - 6 > 24

Therefore, the given statement in the form of inequality is given as -

c - 6 > 24.

To solve more questions on inequality, visit the link below-

brainly.com/question/28229665

#SPJ1

{Question in english -

Six subtracted from c is greater than 24}

On a standardized exam, the scores are normally distributed with a mean of 200 and a standard deviation of 40. Find the z-score of a person who scored 292 on the exam.

Answers

The z-score of a person who scored 292 on the exam is 2.30

How to determine the z-score?

The given parameters are:

Scores are normally distributed Mean of 200Standard deviation of 40

The z-score of a person who scored 292 on the exam is calculated as:

z = Score - mean/Standard deviation

So, we have

z = 292 - 200/40

Evaluate the difference

z = 92/40

Divide

z = 2.30

Hence, the z-score of a person who scored 292 on the exam is 2.30

Read more about z-scores at:

https://brainly.com/question/25638875

#SPJ1

Which of the following options are examples of how you can name the angle? Select all that apply.

Which of the following options are examples of how you can name the angle? Select all that apply.

Answers

Answer:thr lerrkmaf

Step-by-step explanation:

and we are so cool DEA

what number is six more than 1/3 of 90? step by step I have a test tomorrow and I don't know any math

Answers

Answer:

36

Step-by-step explanation:

First, just multiply 90 by 1/3. 90 is equal to 90/1 as any number divided by 1 is still equal to itself.

\(\frac{90}{1}*\frac{1}{3}=\frac{90*1}{1*3}=\frac{90}{3}\)

Now, 90/3 is just 90 ÷ 3.

\(90 \div 3 = 30\)

Finally, just add 6 to it.

\(30+6=36\)

Answer:

36

Step-by-step explanation:

1/3 of 90 is 30

6 more is 30+6=36

in a study, the content of caffeine in brewed coffee was determined. the values for 6 trials were 381 mg/l, 405 mg/l, 399 mg/l, 402 mg/l, 395 mg/l, and 404 mg/l. for a confidence level of 99%, what is the value of t?

Answers

The value of t for a confidence level of 99% and 5 degrees of freedom is 4.032.

The confidence interval is calculated based on the sample mean, the sample standard deviation, the sample size, and the chosen confidence level.

Given the values of caffeine content in 6 trials: 381 mg/l, 405 mg/l, 399 mg/l, 402 mg/l, 395 mg/l, and 404 mg/l.

Sample mean = (381 + 405 + 399 + 402 + 395 + 404) / 6 = 396 mg/l

Sample standard deviation = √([(381-396)² + (405-396)²+ (399-396)² + (402-396)² + (395-396)² + (404-396)²] / (6-1)) = 9.29 mg/l

To calculate the value of t for a confidence level of 99%, we need to look up the t-distribution table with degrees of freedom (df) = n-1 = 5 and the chosen significance level (α) = 0.01 (since we want to calculate the 99% confidence interval, which leaves 1% of the distribution in the tails).

Looking up the t-value from the table, we find that t = 4.032.

Therefore, the value of t for a confidence level of 99% and 5 degrees of freedom is 4.032.

To know more about Trials here

https://brainly.com/question/12255499

#SPJ4

What is the value of b2 4ac for the following equation x2 5x 4 0 16 25 9 next question?

Answers

The value of b² - 4ac for the equation x² + 5x + 4 = 0 is 9.

What is the discriminant of a polynomial?

The discriminant of a polynomial is a function of its coefficients and is represented by the capital ‘D’ or Delta symbol (Δ). It shows the nature of the roots of any quadratic equations where a, b, and c are real numbers.

It is represented as ‘D’

D = b² - 4ac

Where,

a is the coefficient of x²

b is the coefficient of x

c is a constant term

x² + 5x + 4 = 0

We have given:

x² + 5x + 4 = 0

Comparing the equation with the standard form.

a = 1, b = 5 and c = 4

Substituting it in the formula

D = 5² - 4 × 1 + 4

By further calculation

D = 25 - 16

D = 9,

The quadratic roots are real and distinct

Therefore, the value of b² - 4ac is 9.

Hence, The value of b² - 4ac for the equation x² + 5x + 4 = 0 is 9.

To learn more about the discriminant of a polynomial visit,

https://brainly.com/question/272234

#SPJ4

A cylinder has a base diameter of 4 inches and a height of 4 inches. What is its volume in cubic inches, to the nearest tenths place?

Answers

Answer:

V=πr2h=π·22·4≈50.26548

Step-by-step explanation:

the first step is to get a radius that is 1/2 of diameter. So 4/2=2, r=2

then pi x 2^2 x 4 which gets you 50.265 or 20.27 if you round it

Pearson rented a moving van for 1 day. The total rental charge is $66.00. A daily rental costs $45.00 plus $0.25 per mile. How many miles did he drve the van?

Answers

Answer:

iyvgugyvugtvyig

Step-by-step explanation:

ghjhfh

Sidisjdgsosksbs full mhm duh mf dum

CAN SOMEONE PLZZZZZZZZZZZZZZ HELP ME ON THIS!!! I HAVE BEEN ASKING FOR THREE HOURS NOW!! PLZ HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP

and dont guess, show me how u got the answer plz

CAN SOMEONE PLZZZZZZZZZZZZZZ HELP ME ON THIS!!! I HAVE BEEN ASKING FOR THREE HOURS NOW!! PLZ HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPand

Answers

Answer:

2x + 3y = 10

Step-by-step explanation:

What we know:

Triangle ABC has Segment AB included in the equation 2x + 3y = 5.

Saying that this is scaled up, Segment A'B' has be included in an addition equation. As a result, Choices 1 and 4 are out. Second, the two terms on the left side have to be the same, so Choice 3 is also out.

This leaves Choice 2, which is 2x + 3y = 10

In case you're confused with the pic below:

eq1's line is 2x + 3y = 5

eq2's line is 2x + 3y = 10

poly1 is the triangle formed on eq1's line

poly2 is the triangle formed on eq2's line

CAN SOMEONE PLZZZZZZZZZZZZZZ HELP ME ON THIS!!! I HAVE BEEN ASKING FOR THREE HOURS NOW!! PLZ HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPand

Edgar has a fountain that holds 5 quarts of water. He only wants to fill it 3/4 full. How many​ 1-pint containers does it take to fill the​ fountain? How could he fill it with pint and cup​ containers? Explain.

Answers

Answer:

Step-by-step explanation:

1 quart =  2 pints  =  4 cups

1 pint = 2 cups

1/2 pint =  1  cup    .....so.....

First question

5 quarts  =  10 pints

10 * (3/4)  =  7.5 pint   contianers   will fill it  3/4  full  

7.5   pints   =    7  pints   +  1 cup

NEED HELP IMMEDIATELY!

Simplify 10√2y + 5√2y + 3√2y.
A. 18√6y
B. 18√2y
C. 12√2y
D. 18√6y^3

(ANSWER IS NOT A)

Answers

18 root

2

Step-by-step explanation:

In this question imagine there is no y

It will be 10 root2 +5 root2 +3 root 2 it will be 18 root 2

10 + 5 + 3 = 18 therefore it is B


What is the distance between (-9, -6) and (-2,-2)?

Answers

Answer:

To find this we use the distance formula.

Square root of (-2 + 9)^2 + (-2 + 6)^2

square root of 49 + 16

square root of 65

8.0622577483

Step-by-step explanation:

What is the distance between (-9, -6) and (-2,-2)?

Bill can paint a closet in 2 hours. Joe can paint the same in 7 hours. Write equation that can used to find long paint the closet working together. Let represent the number both to complete the job.

Answers

Answer:

14/9 hours

Step-by-step explanation: 1/2+1/7=9/14, so 1/(9/14)=14/9

Calculate: 9.34 - 11.7 + (-6.571)= ?

Answers

Solution

\(\begin{gathered} 9.34-11.7+(-6.571) \\ 9.34-11.7-6.571 \\ -8.931 \end{gathered}\)

Therefore, the asnwer is

\(-8.931\)

In integers what is -11 -6

Answers

Answer:

-17

Step-by-step explanation:

find the compound probability (ignore the stain lol)

find the compound probability (ignore the stain lol)

Answers

the probability of rolling a die and not getting a 6 and flipping a coin and getting tails is 5/12.

what is  probability ?

Probability is a measure of the likelihood that an event will occur. It is expressed as a number between 0 and 1, where 0 means the event will not occur and 1 means the event is certain to occur. The probability of an event is calculated by dividing the number of favorable outcomes by the total number of possible outcomes.

In the given question,

The probability of rolling a die and getting a 6 is 1/6. Therefore, the probability of not getting a 6 is 1 - 1/6 = 5/6.

The probability of flipping a coin and getting tails is 1/2.

To find the probability of both events happening together, we multiply the probabilities:

P(not 6 and tails) = P(not 6) x P(tails)

P(not 6 and tails) = (5/6) x (1/2)

P(not 6 and tails) = 5/12

Therefore, the probability of rolling a die and not getting a 6 and flipping a coin and getting tails is 5/12.

To know more about  probability, visit:

https://brainly.com/question/30034780

#SPJ1

somebody please help i don't understand this. I'd really appreciate it. and please don't steal points :) . i will mark you brainliest. ​

somebody please help i don't understand this. I'd really appreciate it. and please don't steal points

Answers

Answer:

1) You think of G(x) as x, so you plug it in. So, f(x) = \(-2^{2}\) - 2, which is 4 - 2, which is 2.

3) Y = 1

I think, I'm not 100% sure--

Which number is closest to the square root of 71 ?

Answers

Answer:8.4 or 8 depends on the rounding

Step-by-step explanation:

Answer: Its 8 and 9!

Step-by-step explanation:

A claim has been made that men in the age group 20-30 average the same height in inches in the U.S. and the Netherland (the land of giants, by the way). I do not believe this claim. I want to be 99% confident and have 90% power. If I think both populations have a population standard deviation of 4, what sample size (total) would I need to reject the claim if the two populations different by 0.5 (inches)?

Answers

The required sample size (total) to reject the claim of men in the age group 20-30 averaging the same height in inches in the U.S. and the Netherlands, assuming both populations have a population standard deviation of 4, would be 1456.

To calculate the required sample size, we need to use the formula for sample size calculation in two-sample t-tests, which takes into account the desired level of significance, power, effect size, and population standard deviation. In this case, we want to be 99% confident (i.e., 1% level of significance) and have 90% power, which corresponds to a z-value of 2.33 and a t-value of 1.645. The effect size is 0.5/4 = 0.125, and plugging these values into the formula, we get a required sample size of 1456. This means that if we take a sample of 728 men from each population and find a difference of 0.5 inches or more between their means, we can reject the claim with 99% confidence and 90% power.

Learn more about population here

https://brainly.com/question/29885712

#SPJ11

Can somebody help me on this and if so please answer correctly​

Can somebody help me on this and if so please answer correctly

Answers

The answer is A. Good luck man!! :)

Find the solution set of the inequality \qquad52- 3x < -14.52−3x<−14.52, minus, 3, x, is less than, minus, 14, point \qquad xxx

Answers

Answer:

x > 22

Step-by-step explanation:

Given the inequality;

52- 3x < -14

Subtract 52 from both sides

52 - 3x - 52 < -14 - 52

-3x < -14 - 52

-3x < -66

Divide both sides by -3

-3x/-3 < -66/-3

x > 22

Hence the required inequality is x > 22

Fill in the boxes to complete this multiplication

Fill in the boxes to complete this multiplication

Answers

18
x 63
5 4
108 X
1103

find a power series representation for the function. f(x) = 9 1 − x6

Answers

The power series representation for the function f(x) = 9/(1 - x6) is 9(1 + x6 + (x6)² + (x6)³ + ...) ∞.

Given function is f(x) = 9/(1 - x6)

Now, Let's obtain the power series representation for f(x) as follows:

We have to substitute x² in place of x6, to simplify the equation

f(x) = 9/ (1 - x6) = 9/ {1 - (x²)³}

Let a= x² then f(x) = 9/ {1 - a³}We know that the series representation for (1 - a)⁻¹ is1/(1-a) = 1 + a + a² + a³ + a⁴ + ... ∞

Multiplying both sides by (1-a³), we have1/(1-a³) = (1 + a³ + (a³)² + (a³)³ + ...) ∞

Now substitute back a = x² in the above equationf(x) = 9/ {1 - (x²)³} = 9(1 + x6 + (x6)² + (x6)³ + ...) ∞

Hence the power series representation for the function f(x) = 9/(1 - x6) is 9(1 + x6 + (x6)² + (x6)³ + ...) ∞.

Know more about power series here:

https://brainly.com/question/28158010

#SPJ11

Find the volume. Round to 1 decimal place

Find the volume. Round to 1 decimal place

Answers

Answer:

380.8cm³

Step-by-step explanation:

Volume of a Cylinder is: \(V=\pi r^2h\)

'r' is the radius.

'h' is the height.

We are given a height of 9.9 cm and a diameter of 7cm.

The radius is half the diameter.

Divide 7 by 2:

\(7/2=3.5\)

The radius is 3.5 cm.

Solve for The Volume (Using 3.14 for pi):

\(V=3.14*3.5^2*9.9\\\rightarrow3.5^2=12.25\\V=3.14 * 12.25 * 9.9\\V=38.465 * 9.9\\\boxed {V=380.8035}\)

380.8035 ≈ 380.8

The volume of the cylinder should be 380.8cm³.

Russell drove his Land Rover 500 km before he needed to refill his tank with 70 L of petrol. Calculate the number of liters Russell used per 100 km.
The ratio of 500 km to 100 km is = --------------

Answers

Answer:

7.142857142857143

Step-by-step explanation:

500/70*10=answer above.

ratio of 500 km to 100 km is 5 : 1

What is y-8=3(x+1) in standard form

Answers

Answer: 3x - y= -11

Step-by-step explanation: just rewrite in youre standard form equation

M∠3 is (3x 4)° and m∠5 is (2x 11)°. angles 3 and 5 are . the equation can be used to solve for x. m∠5 = °

Answers

Answer:

Part a) consecutive interior angles

Part b) 

Part c) m∠5=

Step-by-step explanation:

see the attached figure to better understand the problem

we know that

Part a) Angles 3 and 5 are consecutive interior angles

therefore

m∠3+m∠5=

Part b) we have

m∠3=

m∠5=

substitute

Part c) solve for x

Find the value of m∠5

m∠5=

m∠5=

Answer:

Step-by-step explanation ma is 9 because p + i=o K/x 798 g ćxΨ / ʥ and 78 / 2 +e =9 then oi x l = j j also = 6 and that's how you do it

Gracie has $32 to spend at the fair.the cost for admission is $5 and each ride costs$2.50

Answers

Is that the rest of the question? But if you took away the 5 dollars a 2.50 dollars from 32, you would have 24.50z

Joanna had 10 pendants and 4 braclets find the ratio of the number of pendats to the number of braclets

Answers

Answer:

5:2

Step-by-step explanation:

Ratios are similar to fraction. So, this could be written as 10/4. Although, it has to be reduced.

So it would be 5/2.

Another thing to keep in mind for this question is that order matters. The pendants are listed first, so its number has to be listed first, while the number of bracelets must be listed second.

In conclusion, and to put it into a ratio form, the answer is:

5:2

is this for real a high school level question or r u just trying  get people to answer then talk to them through the comments?

anyways the answer is either 10:4 or 5:2

Other Questions
A sequence is generated by an=3(2)n -1. what is the value of it's fifth term Can someone plz help me with this one problem plzzzzz!!! eight times the sum of 5 and a number is less than 56 ANSWER NOW NEED HELPA red die, a blue die, and a green dieare rolled. Each die is labeled 1 to 6.Find the probability of each event:a) a 2 on the red die, a 3 on the bluedie, and a 4 on the green dieb) a 4 on the red die, an even numberon the blue die, and a number lessthen 3 on the green die Help help help businesses please Need help with this Which best describes the Corinthian Greek order?A. a slender, refined, and elegant column structureB. a stocky column structure with a plain topC. the most ornate column with many variationsD. has an architrave, a frieze, and a cornice Suppose a stone is through vertically upward from the edge of a cliff on a planet acceleration is 10ft/s^2 with an initial velocity of 60ft/s from a height of 100ft above the ground. The height z of the stone above ground after t seconds is given by z(f) = -10t^3+60t+100a. Determine the velocity v(t) of the stone after t, seconds. b. When does the stone reach its highest point? c. What is the height of the stone at the highest point? From the expenditures approach, list and explain the components of GDP ? Example? Find the product of the term 3ab 6% service charge for 200 boxing ticket Describe in your own words how leadership behavior can be affected by the level of management, the size of the organizational unit and external dependencies. How did the American Revolution affect women?A] Became more politically active B] Drove horse-drawn wagonsC ]Took care of their families D]Traded goods at the general storePLEASE HELP!!!! The NEG instruction changes a value from positive to negative by converting it into its _________ representation. what is the importance of human resources management the ward company has provided the following information: net sales totaled $850,000. beginning net accounts receivable was $70,000. ending net accounts receivable was $95,000. what was ward's average collection period? how to finc the volume of the cylinder when the volume is 45pi, the radius is 9, and the height is 15 Change the following sentence from active to passive voice.Postal workers deliver the mail. When 10.0 mL of 0.2 M iron(II) sulfate solution is added to 10.0 mL of 0.2 M iron(lII) nitrate, the resulting concentrations of Fe2+ and Fe3+ are Select one: a. 0.2 M and 0.2 M, respectively b.0.1 M and 0.1 M, respectively. c.0.4 M and 0.4 M, respectively. Answer below 2Qs1)Your zenith is always directly about your head, unless you are in the southern hemisphere where it is below your feet.True or False2)Stars build helium into hydrogen.True or False