If the diameter of a circle is 8, then what is its area and its circumference?

Answers

Answer 1

Answer:

A≈50.27

Diameter = 8

Using the formulas

A=πr2

d=2r

Solving forA

A=1

4πd2=1

4·π·82≈50.26548

Answer 2

Answer:

I think it would be 50.24

Step-by-step explanation:

Here's what I did:

1. Diameter = 8 so radius = 4

2. 4 to the second power is 16

3. 16 × 3.14 = 50.24

I'm not sure if what I did is correct, but I hope this helps! :)


Related Questions


Amelia went to the candy store and bought 5/6 of a pound of candy. If 1/2 of Amelia's candy
was chocolate, how many pounds of chocolate candy did Amelia buy?

Answers

Answer:

5/12 pounds of chocolate

Step-by-step explanation:

converting 5/6 to 10/12, half of that is is 5/12. hope this helps !!! :D

Answer: 5/12 or about 0.42

Step-by-step explanation:

You are looking for 1/2 of 5/6

5/6 times 1/2 = 5/12

I hope it helps!

PLSSSSSSSSSSSS HELP LAST QUESTION

Answers

Answer:

(12+g)-7

Step-by-step explanation:

Answer:

1. x-5

3. (12+g)-7

sorry don't know number 2

Question
Use a number line to compare the following fractions: 4/3 7/6

Answers

The comparison is that:

4/3 is greater than 7/6 and 7/6 is less than 4/3

The fractions are given as:

4/3 and 7/6

See attachment for the number line that represents both fractions

From the number line. 4/3 is at the right of 7/6

This means that:

4/3 is greater than 7/6 and 7/6 is less than 4/3

Read more about number lines at:

https://brainly.com/question/10851163

Micah and crystal purchase two movie tickets. Tickets cost $8.50 each. drinks cost $3.50 each, and the boxes of candy cost $3.00 each. use an algebraic expression to desribe how much they spend based on the number of tickets, drinks and boxes of candy they buy

Answers

Answer:

2t+2d+2c=30

2(8.50)+2(3.50)+2(3.00)=$30

Step-by-step explanation:

t= tickets (8.50)

d= drinks (3.50)

c= candy (3.00)

Kevin wants to buy a cow but can't afford
the $36 it costs. Later in the year it is at an
affordable $9 and Kevin can buy it. What
percentage of a discount was on the cow?

Answers

Answer:

25%

Step-by-step explanation:

Will give brainliest for correct answer

Answers

Step-by-step explanation:

10. not a function (repeating x values)

11 Function

12 not a function (repeating x values)

Whats the value of 42÷(2+5)•3

Answers

Answer:

Step-by-step explanation:

42÷(2+5)•3 =

first we deal with the parentheses

42÷7•3

now we solve left to right

42÷7•3 = 6•3 = 18

The order of operations is:

Solve the parentheses first. Apply the same set of rules to whatever is inside the parentheses).

Solve multiplication and division - go from the left to right.

Solve addition and subtraction - go from left to right.

And you have the answer!

In this problem we only had division, multiplication and parentheses with addition inside.

Also, in the future you'll probably need to update the above rules with powers, roots and other things.

Write 98 as the product of prime factors.
Write the prime factors in ascending order. ​

Answers

Answer:

2 * 7 * 7 = 98

hope this answer helps you!

Eric is studying two number patterns. Pattern A starts at 0 and has the rule "add 6." Pattern B starts at 0 and has the rule "add 3." What is the relationship between corresponding terms in the two patterns?

The terms in Pattern B are 3 times the corresponding terms in Pattern A.
The terms in Pattern B are 2 times the corresponding terms in Pattern A.
The terms in Pattern B are one third the corresponding terms in Pattern A.
The terms in Pattern B are one half the corresponding terms in Pattern A.

Answers

Answer:

D) The terms in Pattern B are one half the corresponding terms in Pattern A.

Step-by-step explanation:

Pattern A | Pattern B

0 divided by 1/2 = 0

6 divided by 1/2 = 3

12 divided by 1/2 = 6

18 divided by 1/2 = 9

24 divided by 1/2 = 12

Which of the following lists of fractions are in order from least to greatest? Select TWO that apply.
A.
1/4 2/3 3/10

B.
3/5 7/10 5/6

C.
2/5 5/8 3/4

D.
3/8 9/10 7/12


HELP

Answers

Answer:

i think its a 1/4 then 2/3 and 3/10

I’m sure it is 1/4 2/3 3/10 I don’t know the second though. Have a great day good luck

Find the volume of a cylinder that has a height of 8 inches and a diameter of 14 inches.

Answers

Answer:

[tex]V=1232\ inches^3[/tex]

Step-by-step explanation:

Given that,

The height of a cylinder, h = 8 inches

The diameter of the cylinder, d = 14 inches

Radius, r = 7 inches

We need to find the volume of the cylinder. The formula for the volume of a cylinder is given by :

[tex]V=\pi r^2 h\\\\=\dfrac{22}{7}\times 7^2\times 8\\\\V=1232\ inches^3[/tex]

So, the volume of the cylinder is equal to [tex]1232\ inches^3[/tex].

5th grade math. correct answer will be marked brainliest

Answers

Answer:

4.125 or 4 1/8 or 33/8

Step-by-step explanation:

Find the LCD and then combine.

Exposure to ionizing radiation is known to increase the incidence of cancer. One thousand laboratory rats are exposed to identical doses of ionizing radiation, and the incidence of cancer is recorded during subsequent days. The researchers find that the total number of rats that have developed cancer t months after the initial exposure is modeled by for months. Find the rate of growth of the number of cancer cases at the 7th month.

Answers

Missing information :

The model was omitted from the question ; the possible model relating to the question was browsed online and could possibly be :

N(t) = 1.07t^2.3 for 0 ≤ t ≤ 10 months

Answer:

30.9 cases per month

Step-by-step explanation:

Given the model to determine the number of rats that have developed cancer after initial exposure ; N(t) = 1.07t^2.3

N(t) = 1.07t^2.3

Take the first derivative of N with respect to t to obtain the rate of change ;

N'(t) = (1.07)(2.3)t^2.3-1

N'(t) = (1.07)(2.3)t^1.3

The rate of growth of cancer cases at the 7th month can be calculated thus :

t = 7

N'(7) = (1.07)(2.3)t^1.3

N'(7) = 1.07 * 2.3 * 7^1.3

N'(7) = 1.07 * 2.3 * 12.549529

N'(7) = 30.884

The rate of growth of cancer at the 7th month is 30.9 cases per month.

Does the relation {(5,-2), (5,-8), (4,-6), (7,-1)} represent a function?

Answers

Answer:

no, it does not

Step-by-step explanation:

if it was a function, all the x values would've been different, but since 5 is repeated, it is not a function.

Answer: No

Step-by-step explanation:

What is the approximate area of the circle shown below

Answers

Answer:

43 FT^2

Step-by-step explanation:

3.14159265359 x 3.7^2

Pi times the radius squared

I’m pretty sure the answer is a
Exclamation : Hope this helps

If ur reading this right now plz help me whenever I ask a question, this random account under different names keeps sending me random links that are suppose to be answers and those links are unopenable so plz help I really just want an answer and it happend 2 timesT_T
The manager of a company runs an online job ad. She gets 1,000 responses. However, 3 4 of the responses are from applicants who are not qualified. The manager will not interview these candidates. She decides to interview 1 5 of the remaining applicants. How many applicants will she interview?
A) 5
B) 50
C) 150
D) 200

Answers

Answer:

C

Step-by-step explanation:

3/4 of 1000 is 750 and 1/5 of 750 is 150 so your answer is C

A number d is greater than −5.

Answers

Answer: d > -5

Step-by-step explanation: Just convert the greater than into a symbol, and you'll be good to go.

Hope this helps!

Find the shorter base of a trapezoid if the trapezoid's area is 52, its altitude is 8, and its longer basis 10.

Answers

Answer:

The shorter base is 3

Step-by-step explanation:

[tex]a = \frac{(b1 + b2)}{2} \times h[/tex]

[tex]52 = \frac{(10 + b2)}{2} \times 8[/tex]

[tex]b2 = 3[/tex]

Matthew made a mistake solving for x on his homework. Help him correct his process so
that he won't make the same mistake on the test.

Answers

Santana oscillations

Find m Measure of angle A =

Answers

Answer:

a = 104

Step-by-step explanation:

a = 104 because it is an inscribed angle with an arc of 208 degrees

what is 1/3 out of 18 pieces​

Answers

Answer:

6

Step-by-step explanation: :)

The owner of a company determines the median and mean salaries for his 20 employees. The median salary is $41,000, and the mean is $52,000. Which BEST explains why the mean is so much greater than the median?

Answers

Because most of his employees are making close to the lower amount of around 40-45 thousand. But he employs some people at around 65-70 thousand which brings the average up to 52,000

A snake catches and eats a small field mouse. Later that day, a hawk catches the snake and eats it.

Which three terms describe the snake?

Answers

he is a predator, a pretty, and a carnivore .

Answer:

Consumer, predator, and prey.

Step-by-step explanation:

The consumer is the mouse because the snake is eating the mouse and the predator to the snake and the hawk is the eating the snake which is the snake is the hawks prey.

Please give me brainliest! Hope I helped!

Hhhhhhhhhhhhheeeeeeellllllllppppppppp

Answers

Answer:

With whattttttttttttttttttttttttttt

Step-by-step explanation:

PLZZZ Help I need to hurry I got all the other questions right except this one. I dont understand it.

One of the terms in the summation is _______.

Answers

I think its B because i did this in class before and it looks familiar. (branliest will be appreciated as well) Thanks

One of the terms in the summation is(1,3)

what does 3 x 2/5 equal?

Answers

Answer:

you would get 1.2

Answer:

Step-by-step explanation:

exact form 6/5

decimal form 1.2

mixed number form 1 1/5

PLSSS HELP (4x - 1)
(3x)

Answers

Answer:

x = 13

Step-by-step explanation:

3x + 4x-1 +90 = 180

7x = 91

x = 13

What is the answer to 3/4= 6

Answers

Answer:

False

Step-by-step explanation:

Math problem 8/3+(-9/4)​

Answers

Answer:

[tex]\frac{5}{12}[/tex]

Step-by-step explanation:

Answer: =5/12

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

2+2+2+2+67 I really need help​

Answers

Answer: the answer is 75

Step-by-step explanation:

67 x 4

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