The diameter of a circle measures 8 cm. What is the circumference of the circle?
Use 3.14 for it, and do not round your answer. Be sure to include the correct unit in your answer.

Answers

Answer 1

Answer:

16π or 50.266

Step-by-step explanation:

Circumference formula is just 2πr ,and the radius is 8, so just sub into the formula

Answer 2

Answer: 25.12 cm

Step-by-step explanation:

The formula for the circumference of a circle is [tex]2\pi r[/tex], when r = the radius.

Diameter = 2 x radius = 8 cm. Therefore, the radius = 4 cm.

Plug r = 4 cm in to the circumference formula: [tex]2\pi (4)[/tex] = 8 x 3.14 = 25.12 cm.


Related Questions

can somebody explain what the problem is explaining to me

Answers

Answer:

The problem basically is saying that find two numbers that add up to 8, where one is three times the other.

Step-by-step explanation:

The best thing to do here is to write a simple system of equations.

b+y=8

b=3y

The first equation means that the total blue paint plus the total yellow paint is equal to 8 ounces.

The second equation means that the blue paint is equal to 3 times the yellow paint.

We can isolate b in the first equation to get b=-y+8

-y+8=3y

8=4y

y=2.

So we have that she needs two ounces of yellow paint.

Therefore she needs six ounces of blue paint.

Drag the yellow bar to 2, and the blue bar to 6.

Hope this helps!

HELP!!!!!!!!! ASP
A line passes through the points R(–9, 4) and F(1, 2). Two points that lie on a line perpendicular to this line are
Select one:
a.
(–10,–4) and (–5,5)
b.
(10,4) and (5,5)
c.
(15,2) and (24,4)
d.
(2,15) and (4,25)

Answers

Answer:

D

Step-by-step explanation:

What you need to do is find the slope of both lines. Perpendicular lines are the negative inverse of each other. The slope of the lie between points R and F is  (2-4)/(1+9)=-1/5. Now you need to find the line where the slop is 5. If you look at D, the slope of the line those points lie on is (25-15)/(4-2)=5 which makes D the answer.

Answer:

D. (2,15) and (4,25)

Step-by-step explanation:

The slope of the line that passes through (-9,4) and (1,2) is -1/5 so in order to find the slope that is perpendicular to it, you need to find out with of these pairs of points has a slope that is the negative reciprocal of -1/5 which is 5. So the only points that have the slope of 5 are (2,15) and (4,25).

~Please mark me as brainliest :)

1. FIND THE MEAN OF 8, 15, 10, 22, 16, 4

2. THE MEAN OF 42, X, 26, 58, 38 IS 40. FIND X

3. THE MASSES OF FIVE BAGS ARE 38.6KG, 40.5KG, 46.8KG, 30.7KG, 44.4KG. CALCULATE THE MEDIAN MASS.

4. FIND THE MODE OF THESE NUMBERS 10, 8, 13, 16, 14, 9, 5, 18, 13, 8

5. CALCULATE THE RANGE OF THE FOLLOWING SETS OF DATA. 10, 11, 13, 14, 17, 19, 15, 12, 12, 15.

Answers

1) the mean is 12.5
2) X is 36
3) the median mass is 40.5 KG
4) the mode is 8, 13
5) the range is 9

Answers:

1. 12.5

2. 36

3. 40.5 kg

4. 13 and 8

5. 9

Look at the attached picture

Hope it will help you...

Good luck on your assignment

Factor 2x2 - 9x - 5 using substitution.

Answers

Answer:

(2x+1)(x−5)

Step-by-step explanation:

If we factor 2x² - 9x - 5 using substitution, we would have; (2x+1)(x−5).

How to factor the expression

The substitution method of factorization requires that we replace it with another variable. Thus, in the expression above, we would first determine the product of the leading coefficient, and find two numbers that add up to the coefficient of the leading term.

The last step is to group the terms and factor the greatest common factor. The result of this factorization would be:

(2x+1)(x−5)

Learn more about factorization here:

https://brainly.com/question/25829061

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A drum company advertises a snare drum that is 2 inches high and 12 inches in diameter. Find the volume
of the drum to the nearest tenth. Use 3.14 for
The volume of the drum is about
ins.

Answers

Answer:904.78

Step-by-step explanation:

help plz..will give the brainliest!!

need step by step explanation .​

Answers

Answer:

[tex]=8[/tex]

Step-by-step explanation:

[tex]\log _2\left(16\right)\log _3\left(9\right)\\\mathrm{Simplify}\:\log _2\left(16\right):\quad 4\\\log _2\left(16\right)\\\mathrm{Rewrite\:}16\mathrm{\:in\:power-base\:form:}\quad 16=2^4\\=\log _2\left(2^4\right)\\\mathrm{Apply\:log\:rule}:\quad \log _a\left(x^b\right)=b\cdot \log _a\left(x\right)\\\log _2\left(2^4\right)=4\log _2\left(2\right)\\=4\log _2\left(2\right)\\\mathrm{Apply\:log\:rule}:\quad \log _a\left(a\right)=1\\\log _2\left(2\right)=1\\=4\cdot \:1[/tex]

[tex]\mathrm{Multiply\:the\:numbers:}\:4\cdot \:1=4\\=4\\=4\log _3\left(9\right)\\\mathrm{Simplify}\:\log _3\left(9\right):\quad 2\\\log _3\left(9\right)\\\mathrm{Rewrite\:}9\mathrm{\:in\:power-base\:form:}\quad 9=3^2\\=\log _3\left(3^2\right)\\\mathrm{Apply\:log\:rule}:\quad \log _a\left(x^b\right)=b\cdot \log _a\left(x\right)\\\log _3\left(3^2\right)=2\log _3\left(3\right)\\=2\log _3\left(3\right)\\\mathrm{Apply\:log\:rule}:\quad \log _a\left(a\right)=1\\\log _3\left(3\right)=1\\=2\cdot \:1[/tex]

[tex]\mathrm{Multiply\:the\:numbers:}\:2\cdot \:1=2\\=2\\=4\cdot \:2\\\mathrm{Multiply\:the\:numbers:}\:4\cdot \:2=8\\=8[/tex]

!28 POINTS! I need help quick!! The area of a rectangle is 2x^2-7x-15. Determine binomials that represent the length and the width if this triangle.

Answers

Answer:

(2x +3  )(x-5)

one is the length and one is the width

Step-by-step explanation:

2x^2-7x-15

Factor

(2x      )(x      )

What are the factors of -15?  -1*15  and -3*5, 3*-5 , 1*-15

We need 2* one factor ± the other factor = -7

2*-5 +3 = -7

That means the -5 is on the outside and the +3 is on the inside

(2x +3  )(x-5)

Alex knows that 4×20=80.

Select the three statements that are true.

Answers

What are the statements

Answer:

Don't Know

Step-by-step explanation:

I'm sorry to say this but I can't answer this full equation without knowing what the three statements are.

-10 + x + 4 – 5 = 7x – 5 i know the answer its -1 help please

Answers

Answer:

x = -1

Step-by-step explanation:

- 10 + x + 4 - 5 = 7x - 5

-11 + x = 7x - 5

-6 + x = 7x

-6 = 6x

x = -1

Answer:

x= -1

Step-by-step explanation:

Step 1: combine like terms

-10+x+4-5=7x-5---------->  -10-5+4+x=7x-5-------->-11+x=7x-5

Step 2: Isolate the variable

-11+x=7x-5-------------> -11+5-x+x=7x-x+5-5-------> -6=6x

Answer:

x= -1

What is the perimeter of this tile?

Answers

Answer:

6x2=12

Step-by-step explanation:

Answer:

thats 12

Step-by-step explanation:

and ik that for a fact because u need to multipy

help ASAP
find the volume of the cone and cylinder please​

Answers

Answer:

This is for cylyinder

V=πr2h

2723.76

Please answer correctly !!! Will mark brainliest !!!!

Answers

Answer:

This answer for the provided question is yes.

If its what I think, The answer would be A. 1 1/5

48/40 = 1 8/40

1 8/40 Simplify to 1 1/5

Hope this helps!

Step-by-step explanation:

Find the distance between the points (11, 15) and (11, 6).

Answers

Answer:

9

Step-by-step explanation:

Answer:

Step-by-step explanation:

The distance between the pounts 11 and 15 is: 15-11=4 and the distance between 11 and 6 is: 11-6=5

I hope it'll help you much

Thank you for asking

will mark brainliest :)

Answers

Answer:

B and E

Step-by-step explanation:

The 2 in front of the x^3 stretches it vertically and the +8 shifts it up.

Answer:

hi

Step-by-step explanation:

You can make one square with four toothpicks. Show how you can make two squares with 10 toothpicks and five squares with 12 toothpicks please help

Answers

Answer:

by doing it the same way you did with the first one.

Step-by-step explanation:

What is the answer of this question

Answers

The right answer is x^2-1.

EXPLANATION:

To be a polynomial, the power of each term must be a whole number.

Hope it will be helpful to you...

Good luck on your assignment

~pragya

Which graph represents the solution set of the inequality below?

Answers

A because it means any value above 26 is correct for the system

Answer:

A

Step-by-step explanation:

Suppose you have 20 coins that total $3.00. Some coins are nickels and some are quarters. Which of the following pairs of equations would you use to find out how many of each coin you have?

A. n + q = 30
5n + 25q = 20
B. n + q = 30
n + q = 3.00
C. n + q = 3.0020
0.05n + 0.25q = 3.00
D. n + q = 20
5n + 25q = 300

Answers

Answer: D. n + q = 20

5n + 25q = 300

Step-by-step explanation:

Let n represent the number of nickels that you have.

Let q represent the number of quarters that you have.

Suppose you have 20 coins. It means that

n + q = 20

The total value of the coins is $3. The value of a quarter is $0.25 and the value if a nickel is $0.05. Therefore, the equation would be

0.05n + 0.25q = 3

Multiplying both sides of the equation by 100, it becomes

5n + 25q = 300

The correct option is

D. n + q = 20

5n + 25q = 300

Answer:

D

Step-by-step explanation:

Just need the answer no work needed thank you

Answers

Answer:

The answer is D 5.75 inches

Step-by-step explanation:

D. 5.75

Step-by-step explanation:

11.5*16*5.75 = 1,058

what is the average rate of change of g over the interval [-1 2]​

Answers

Answer:

j

Step-by-step explanation:

The average rate of change of g over the interval [-1, 2] is -2.67.

What is Average Rate of Change of a Function?

Average rate of change of a function is defined as the rate at which the value of the function is changing with respect to the change in the input values.

Given a function g.

Given interval is [-1, 2].

Average rate of change = [g(2) - g(-1)] / [2 - -1]

                                        = (-3 - 5) / (3)

                                        = -8/3

                                        = -2.67

Hence the average rate of change is -2.67.

Learn more about Average Rate of Change here :

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please help!! what is the m<4?

Answers

Answer:

[tex]m\angle 4 = 117\textdegree[/tex]

Step-by-step explanation:

-Both [tex]\angle 1[/tex]and [tex]\angle 4[/tex] are supplementary, which they both equal to [tex]180\textdegree[/tex]. So, to get the measurement of [tex]\angle 4[/tex], you need to subtract measure of [tex]\angle 1[/tex], from [tex]180\textdegree[/tex] :

-Both [tex]\angle 1[/tex] and [tex]\angle 4[/tex] are supplementary:

[tex]\angle 1 + \angle 4 = 180\textdegree[/tex]

-Find the [tex]m \angle 4[/tex] by subtracting the [tex]m \angle 1[/tex] from [tex]180[/tex] :

[tex]180\textdegree - 63\textdegree = 117\textdegree[/tex]

So, the [tex]m\angle 4[/tex] is [tex]117\textdegree[/tex] .

Given the conditional statement c→~b, which of the following is the converse

Answers

Answer:

To form the converse of the conditional statement, interchange the hypothesis and the conclusion. The converse of "If it rains, then they cancel school" is "If they cancel school, then it rains." To form the inverse of the conditional statement, take the negation of both the hypothesis and the conclusion.

Step-by-step explanation:

A club consisting of 6 juniors and 8 seniors is to be formed from a group of 13 juniors and 16 seniors. How many different clubs can be formed the group?

Answers

Answer:

22084920

Step-by-step explanation:

You bought a wake board boat 4 years ago for $45,000. The boat's value depreciates by 10%
per year.

Answers

Answer:

it would be about $18000 in value

Step-by-step explanation:

:)

1st Year: 4,500 / 45,000/10
2nd Year: 2,250 / 45,000/20
3rd Year: 1,500 / 45,000/30
4th Year: 1,125 / 45,000/40
You add ten percent for every year

Hope this helps!

Another point also lies on the line y = 3x  2
Its y-coordinate is 25
Write down the coordinates of this point.

Answers

it’s 7,3 because it just is and yea leave me alone

Given the function f(x) = 2/3 * x - 5 , evaluate f(9)

Answers

Answer:

1

Step-by-step explanation:

Try It!
» Joaquin wants to reduce the number of winners so he
does not have to prepare as many prizes. Choose
another sum he could use as a winning sum, and
predict the number of winners if 500 people play his
game.​

Answers

Answer:

Late, but is it 78?

Step-by-step explanation:

Find the 72nd term of the arithmetic sequence -27, -11, 5,...

Answers

Answer:

1109

Step-by-step explanation:

So the pattern is + 16

So if you start from -27, the second term is -27 + 16 * 1

The 72nd term will be -27 + 16 * 71

16 * 71 = 1136

-27 + 1136 = 1109

Find the volume of the prism.



The volume is
cubic inches.

Answers

Answer:

3/10 cubic in.

Step-by-step explanation:

V= w*h*l= 3/5 times 3/4 times 2/3 = ...

3/10 cubic in. simplified

Hope this helps :D

The volume of a cuboid is 3/10 cubic inches.

What is the volume?

Volume is the measure of the capacity that an object holds.

Formula to find the volume of the object is Volume = Area of a base × Height.

Given that, length of a cuboid = 2/3 in., Breadth of a cuboid=3/5 in., and height of a cuboid = 3/4 in.

We know that, the volume of a cuboid = Length×Breadth×Height

= 2/3 × 3/5 × 3/4

= 1/5 × 3/2

= 3/10 cubic inches

Therefore, the volume of a cuboid is 3/10 cubic inches.

To learn more about the volume visit:

https://brainly.com/question/13338592.

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If DE is congruent to KR and O is the midpoint of ER and DK, which of the following congruence postulates can be used
to prove that the triangles are congruent.


SAS
SSS
ASA
HL

Answers

Answer:

ASA

Step-by-step explanation: I'm not sure I had just found a key.

Answer:

its SAS

Step-by-step explanation:

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