What’s the area and the circumference of a circle with diameter 8m?

Whats The Area And The Circumference Of A Circle With Diameter 8m?

Answers

Answer 1

Answer:

50.24

Step-by-step explanation:

8÷2 is the radius. 3.14×4^2=50.24 m^2

^= where the exponent is supposed to go

Answer 2
Question : -

Find the area and the circumference of a circle with diameter 8 m .

Given : -

Diameter of circle = 8 m

To Find : -

Area of circle

Circumference of circle

Formula Used :

1)

[tex] \pink{\boxed{ \sf{Area \: of \: circle = \pi r {}^{2} }}}[/tex]

2)

[tex] \pink{\boxed{\sf{Circumference of circle = 2\pi r}}}[/tex]

So Starting Our Solution :

We know that radius of circle is always halves of its diameter . So radius of circle :

8/2

4 m

1) Finding area :

πr²

3.14 × 4 × 4

3.14 × 16

50.24

Therefore, area of circle is 50.24 .

2) Finding circumference :

2πr

2 × 3.14 × 4

6.28 × 4

25.12 m

Therefore, circumference of circle is 25.02 m

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Related Questions

PLEASEEEE HELP I NEED A ANSWER ASAP!!!!!!!

David has $520 to spend at a bicycle store for some new gear and biking outfits. Assume all prices listed include tax.
He buys a new bicycle for $303.93.
He buys 4 bicycle reflectors for $10.99 each and a pair of bike gloves for $25.25.
He plans to spend some or all of the money he has left to buy new biking outfits for $73.43 each.

Write and solve an inequality which can be used to determine xx, the number of outfits David can purchase while staying within his budget.

Answers

Answer:

520 - 303.93 - (10.99 * 4) - 25.25 - 73.43x ≥ 0

-

1) Parentheses

520 - 303.93 - 43.96 - 25.25 - 73.43x ≥ 0

-

2) Combine like terms

146.86 - 73.43x ≥ 0

-

3) Get the variable term alone

-73.43x ≥ -146.86

-

4) Divide to solve

x ≤ 2

** dividing by a negative number, the inequality sign flips **

ANSWER :

x ≤ 2

Step-by-step explanation:

303.93+(4×10.99 )+25.25+73.43x = 520

303.93 + 43.96 + 25.25 + 73.43x = 520

373.14 + 73.43x = 520

73.43x = 520 - 373.14

73.43x = 146.76

x = 146.76 ÷ 73.43

x = 2

x ≤ 2

An investment pays 6% interest compounded weekly. What percent, as a decimal, is the effective annual yield?

Answers

Answer:

Is it .06

I just learned that when you have a percent and you want it to be a decimal, always move % 2 places to the left .

Write down all the even numbers less than 100 that are prime numbers

Answers

Answer:

The answer is only 2 because even numbers are divisible by 2, also 2 is a prime number.

For every 4 hours Michelle works, she gets a 15 minute break. Which equation shows the proportional relationship between the number of hours she works w and the number of hours of break time she gets b?​

Answers

Answer:

b=8w

Step-by-step explanation:

(1/4 hour) * b = (4 hour) * w

b = 16w

Find the slope of the line passing through the points (-7 ,-7) and (-3,6)

Answers

Answer:

14/4 or 7/2

Step-by-step explanation:

6 - (-7)

---------

-3 - (-7)

When you subtract a - its really just adding

If x = 9 units and h = 4 units, then what is the area of the triangle shown above?

Answers

Answer:

18

Step-by-step explanation:

The area of triangle is b*h/2

so it will be 36/2 which will be 18

Please mark as Brainliest

Four (4) Vikings tennis players took their
statistics midterm exam early, so that they can
attend Ojai tournament. The mean on their
exam is 84 and the variance is 0 (zero). What
score did each of the 4 students earn?

Answers

Using the statistical concepts of mean and variance, it is found each of the 4 students earned a score of 84.

What are the mean and the variance of a data-set?The mean of a data-set is given by the sum of all observations in the data-set divided by the number of observations.The variance is given by the sum of the differences squared of each observation and the mean, divided by the number of observations.

In this problem, we have that:

The mean is of 84.The variance is of 0, which means that the sum of the differences squared of each observation and the mean is of 0, hence all students scored the mean, that is, they had a score of 84.

More can be learned about the statistical concepts of mean and variance at https://brainly.com/question/25639778

James has $400 in a savings account. He wants to keep at least $225 in the account at all times. Each time James goes to play laser tag, he pays $35. Which graph shows how many times James can go to laser tag?

Answers

Answer:

5 times

Step-by-step explanation:

$400 - $225 = $175

$175 ➗ $35 = 5

Answer:

C is the correct answer

Step-by-step explanation:

Please help with math (35 points)

Question 1 Answer choices. 76° 70° 72° 79° 82°

Question 2 Answer choices. x = 7 x = 8 x = 10 x = 9 x = 12

Answers

Applying the inscribed angle theorem, we have:

1. m∠ABC = 79°

2. x = 10

What is the Inscribe Angled Theorem?

The inscribed angle theorem states that the measure of an inscribed angle = 1/2(measure of intercepted arc).

Thus:

1. Find m∠ABC:

m∠ABC = 1/2(measure of arc AC) [inscribed angle theorem]

Substitute

m∠ABC = 1/2(360 - 94 - 108)

m∠ABC = 79°

2. Find the value of x:

m∠DEF = 1/2(DF) [inscribed angle theorem]

Substitute

51 = 1/2(14x - 38)

2(51) = 14x - 38

102 = 14x - 38

102 + 38 = 14x

140 = 14x

10 = x

x = 10

Learn more about inscribed angle theorem on:

https://brainly.com/question/3538263

What is the slope of the line through the points (10,4)and (7,3) write your answer in simplest form

Answers

Answer:

1/3

Step-by-step explanation:

to find the slope of two points the formula is (y2-y1)/(x2-x1) so if you plug in the numbers given into that formula you get (3-4)/(7-10), then simplifying that you get (-1)/(-3) and the negatives cancle out so you get 1/3

The slope is the inclination of a line and can be calculated by the ratio of the difference of y's coordinate to x's coordinate thus the slope of the line passing through points  (10,4)and (7,3) is 1/3.

What is the slope?

A slope is a tangent or angle at a point and a slope is the intensity of inclination of any geometrical lines . The slope could be positive or negative.

The slope of the lines passing through points  (x₁, y₁) and (x₂, y₂) is,

⇒ (y₂ - y₁)/(x₂ - x₁)

As per the given points  (10,4)and (7,3)

Slope = (3 - 4)/(7 - 10)

Slope = -1/-3 = 1/3

Hence "The slope is the inclination of a line thus the slope of the line passing through points  (10,4)and (7,3) is 1/3".

To learn more about slopes,

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Help me please please I beg find the area of the figure

Answers

Answer:

12 4/5

Step-by-step explanation:

A whole number is 6 more than 2 times another number. The sum of the two numbers is less than 50. This can be written in an inequality as x + 2x + 6 < 50, where x represents the smaller number. From the set {13, 14, 15, 16, 17}, the values of x for which the inequality holds true are {16, 17} {13, 14} { 13, 14, 15} {15, 16, 17} . Reset Next

Answers

Answer:

Dont really see a question

Step-by-step explanation:

its 21

21x2 is 42+6 is 48 which is 2 less than 50

Miss Ong bought some highlighters. Each highlighter costs $2. For every 3 highlighters bought, one was given free. If she had spent $92, how many highlighters did she buy altogether?

Answers

Answer:

She bought 46 highlighters and was given 15 for free

Step-by-step explanation:

Divide 92 by 2, which gives you 46

46 is the number of ens you bought

next Divide 46 by 3 to calculate how many she was given for free

46 ÷ 3 = 15.333

you will round down which gives you 15.

Three siblings have decided to pool their money to buy their parents a gift for their anniversary. They need to save $224.50 in total. Each sibling has a different rate of pay and works a different number of hours. Nancy earns $10.70 per hour. • Marc earns $11.30 per hour and always works 5 more hours per week than Nancy. • Kara babysits and earns $9 per hour and always works 2 hours less per week than Nancy. How many hours in a week must each sibling work in order to reach their goal of $224.50?​

Answers

The number of hours each sibling must work each week to reach their goal of $224.50 is as follows:

Nancy: 6 hours

Nancy: 6 hoursMarc = 11 hours

Nancy: 6 hoursMarc = 11 hoursKara = 4 hours

Weekly calculation and of work done

The total amount of money that needs to be saved = $224.50

Total amount of money Nancy earn = $10.70 per hour.

Total amount of money Marc earn = $11.30 per hour

Total amount of money Kara earn = $9 per hour

Number of hours Nancy works = X hours

Number of hours Marc works = 5 + X hours

Number of hours Kara works = X - 2 hours

To calculate the amount each earn according to the number of hours they worked the following is carried out;

10.70(X) + 11.30( 5+X) + 9(x-2) = 224.50

10.70x + 56.5 + 11.30x + 9x - 18 = 224.50

Collect the like terms together

10.70x+11.30x+9x +56.5-18 = 224.50

31x + 38.5 =224.50

31x =224.50 - 38.5

31x = 186

X = 186/31

X = 6

Therefore Nancy works for 6 hours

Marc works for 5 + X = 5+6 = 11 hours

Kara works for x- 2= 6-2 = 4 hours

Learn more about hours here:

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simplify the ratios

200g : 3kg​

Answers

Answer:

66.6:1

Step-by-step explanation:

Compare the behavior of exponential functions to the limits of their situations.

Answers

Answer:

see below:

Step-by-step explanation:

What is the behavior of exponential functions?

For exponential functions, we see that the end behavior tends to infinity really fast. The larger the growth factor, which is the base of the exponential function, the quicker we get to infinity.

The limit of an exponential function is equal to the limit of the exponent with same base. It is called the limit rule of an exponential function.

for a comparison lets look at the exponentila function y=[tex]x^{4}[/tex]

the graph of this would look very similar an x squared parabola and would of course be increasing at an exponential rate

the limit would be equal to infinity

[tex]\lim_{x \to \infty} x^{4}[/tex] since the limit is equal to the limit of the exponent we would simply get x to the power of infinity which is infinity

hope this helps! if there is a specific comparison you need comment on this

please answer
: B
tysm

Answers

Answer:

-2

Step-by-step explanation:

(7 - 0)/(0 - 3.5) = -2

Answer: -2

Step-by-step explanation: Remember rise over run. Two points you are given from the graph are (0,7) and (1, 5).

[tex]\frac{7-5}{0-1} = \frac{2}{-1} = -2[/tex]

Tristi contributes a set percentage of her gross pay to a 401k account and will have a total of $133,473.00 by retirement. Tristi's employer also contributes a set percentage, which will increase her total to $262,612.00. What is the percent increase between the total without and the total with Tristi's employer's contribution? Round your final answer to the nearest whole percent. (1 point)
59%
63%
81%
97%

Answers

Answer:

97%

Step-by-step explanation:

I got 63% wrong :') it showed that 97% was right.

The percent increase between the total without and the total with Tristi's employer's contribution is 97% option (D) is correct.

 

What is the percentage?

It's the ratio of two integers stated as a fraction of a hundred parts. It is a metric for comparing two sets of data, and it is expressed as a percentage using the percent symbol.

It is given that;

Tristi contributes a set percentage of her gross pay to a 401k account and will have a total of $133,473.00 by retirement.

Using the formula of percentage increase:

= [($262,612.00 - $133,473.00)/ $133,473.00] x 100

= 97 %

Thus, the percent increase between the total without and the total with Tristi's employer's contribution is 97% option (D) is correct.

Learn more about the percentage here:

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Solve the problem algebraically 4∣x+9∣−2>10

Answers

Answer:

x is (-infinite, -12) and (-6, infinite)

Step-by-step explanation:

Meaning that x is less than -12 and greater than 6. I think...

Change .4 to a fraction

Answers

4/9

Step-by-step explanation:

because it repeating the denominator would be 9 so 4/9.

To transform infinitely repeating decimals into fractions can be tricky but I will show you a trick that turns them into fraction form.

For one digit repeating starting at the 10th digit it is simply

[tex]\frac{n}{9}[/tex]

for 0.n repeating

In this case it would be 4/9

If the number is

0.nm repeating nm, the fraction would be nm divided by 99 and so on.

However if the number is 0.nm with only m repeating

then it would be (n+m-n)/90

This part is good to know and the trick is similar but for your case you do not need to know this or further extension of the underlined part.

Find the length of a rectangle with a perimeter of 148 inches and width of 36 inches.
inches

Answers

Answer:

Perimeter of rectangle = 2L + 2W

2L + 2 * 36 = 148

2L = 148 - 72

2L = 76

L = 38 inches

Given :-Width of rectangle = 36 inches Perimeter of rectangle = 148 inches.

[tex] \\ [/tex]

To find:-Length of rectangle

[tex] \\ [/tex]

Solution:-

We know:-

[tex] \bigstar \boxed{ \rm Perimeter \: of \: rectangle = 2(length + width)}[/tex]

[tex] \\ [/tex]

So:-

[tex] \\ [/tex]

[tex] \dashrightarrow \sf 148 = 2(length + 36) \\ [/tex]

[tex] \\[/tex]

[tex] \dashrightarrow \sf 148 = 2(length) + 2(36) \\ [/tex]

[tex] \\ [/tex]

[tex] \dashrightarrow \sf 148 = 2(length) + 2 \times 36 \\ [/tex]

[tex] \\ [/tex]

[tex] \dashrightarrow \sf 148 = 2(length) + 72 \\ [/tex]

[tex] \\ [/tex]

[tex] \dashrightarrow \sf 148 = 2length + 72 \\ [/tex]

[tex] \\ [/tex]

[tex] \dashrightarrow \sf 148 - 72= 2length \\ [/tex]

[tex] \\ [/tex]

[tex] \dashrightarrow \sf76= 2length \\ [/tex]

[tex] \\ [/tex]

[tex] \dashrightarrow \sf 2length = 76 \\ [/tex]

[tex] \\ [/tex]

[tex] \dashrightarrow \sf length = \dfrac{76}{2} \\ [/tex]

[tex] \\ [/tex]

[tex] \dashrightarrow \sf length = \cancel \dfrac{76}{2} \\ [/tex]

[tex] \\ [/tex]

[tex] \dashrightarrow \bf length = 38 \: inches[/tex]

Which of the following statements is TRUE about the midline of a trapezoid?
A. It bisects only one of the legs.
B. It is perpendicular to the beses.
C. It connects any two corners of the trapezoid.
D. Its length is half the sum of the mercutrements of the bases​

Answers

Answer:

C will be the rightful answer

Help me please please I beg

Answers

Answer:

cm

Step-by-step explanation:

if using centimeters to determine the perimeter then it's just cm.

If you're using centimeters to determine area it would be cm^2.

If you're using centimeters to determine volume it would be cm^3.

I hope this helps you. Have a blessed day.

:);)

In the game, your score grew by 200 points each time you scored. Two expressions below represent your echoes after 12 hits. Find both.
A) 200 + 200 + - - - + 200 +200
—————————————————
12times

B) 200 ⚫️ 200 ⚫️ - - - ⚫️ 200 ⚫️ 200
—————————————————
12times
C) 200 ⚫️ 12
D) 200 + 12

(I think the black circles stand for times...
also anyone who helps me thank you so much, I’m honestly just trying to make it through school at this point. And I’m just a freshman in high school:D

Answers

Answer:

b

Step-by-step explanation:

Answer:

a and c

Step-by-step explanation:

If a person drives a car in the United States, that person must drive on the right side of the road. Kaylee drives a car in the United States.
A. Kaylee has her driver's license.
B. Kaylee must drive on the left side of the road.
C. Kaylee must drive on the right side of the road.
D. Kaylee must park her car on the right side of the road.

Answers

Ok so that means Kaylee must drive on the right side of the road because she lives in the United States gg ez claps

Please help, will give brainliest :)

Answers

Answer:

1. 2x + 3y = 25

2. Multiply the first equation, x + y = 11, by 2, to cancel out x

3. 8

4. 3

Solve the division equation using the number line.

A number line from zero to one partitioned into five parts. Each of those parts is partitioned into six parts. Below is the equation one fifth divided by six equals blank.

one thirtieth
11
six thirtieths
30

Answers

Answer:

1 thirtieth

Step-by-step explanation:

1/5 ÷6 = 1/30

Answer:

1 twelfth

Step-by-step explanation:

1/4 Devided by 3 is 1/12

On Tuesday afternoon at camp, Tiana did archery and sailing before dinner. Archery started at 12:30 P.M. Tiana spent 55 minutes at archery and 55 minutes sailing. What time did sailing end?

Answers

Answer:

2:20 p.m.

Step-by-step explanation:

Let's start with what we know

Tiana starts at 12:30 and spends 55 minutes at archery and 55 minutes sailing.

This question wants us to find what time does sailing end. To find this, we add 12:30 with 55 minutes for archery, then another 55 minutes for sailing

So,

12:30 + 55 minutes = 1:25

Then,

1:25 + 55 minutes = 2:20

So, she will end sailing at 2:20 p.m.

If you have any questions, let me know in the comments! If you could mark this answer as brainliest, I would greatly appreciate it! :D

what is the solution to the equation e3x = 12

Answers

Answer:

x = 4

Step-by-step explanation:

Going to assume thats an extra e

3x = 12

Divide 12 by 3

x = 4

Answer:

x=0.83

Step-by-step explanation:

got it right on the test

Enter the phrase as an algebraic expression.
the sum of 173 and h

Answers

Answer:

173 + h

Step-by-step explanation:

173 + h

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