The diameter of a circle is 8 mm. What is the circumference of the circle?

Answers

Answer 1

Answer:

C=22÷7×8

=3.14×8

=25.12


Related Questions

I did help on this question

Answers

Answer:

6/7

Step-by-step explanation:

Find the slope of the line that goes through (5,-8) and (-2,2)

Answers

Answer:

-1.42857

Step-by-step explanation:

A store sells hardcover books for $8 and paperback books for $5. You buy 7 books, represented by the equation x + y = 7, where x is the number of hardcover books and y is the number of paperback books. The equation 8x + 5y = 41 represents the total cost. How many of each type of book did you buy?

Answers

Answer:

Total number of Hardcover books is TWO while the number of Paperback books is FIVE

Step-by-step explanation:

No. of hardcover book = x

No. of paperback book = y

Cost of one hardcover book = $8

Cost of one paperback book = $5 We are given that:

x+y=7 (Equation 1)

8x+5y=41 (Equation 2)

We can find out value of x and y by solving both equations simultaneously.

Hence, Total number of Hardcover books is TWO while the number of Paperback books is FIVE

Step-by-step explanation:

Put the following equation of a line into slope-intercept form, simplifying all fractions. 3x+6y=-42

Answers

Answer:

y = -1/2x + 7

Step-by-step explanation:

3x + 6y = 42.  Put everything except the y term on the right hand side, so subtract 3x from both sides.

6y = -3x + 42.  You want 1y by itself, so divide everything by 6.

y = -1/2x + 7

part 2 of Question please help me
and thank you for your help

Answers

1 tick represents 8 units

P l e a s e NO LINKS!
Which word has reflectional symmetry across a horizontal line?
A. BOOK
B. LOOK
C. NOOK
D. ROOK

Answers

Answer:

A BOOK

Step-by-step explanation:

pretty sure its that

The word BOOK shows a reflection symmetry across a horizontal line.

Hence, option (A) is correct.

What is reflection?

Reflection is basically a mirror image of the shape, in which the image of a given figure changes accordingly to a given line or axis.

Solve with the help of options,

(A)

BOOK

To find the reflection across a horizontal line,

When word B reflected over horizontal line, it is symmetrical

Word O is symmetrical.

And K is also symmetrical across a horizontal line.

Therefore, BOOK is a reflection symmetry across a horizontal line.

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what are dependent and independent variables in a function

Answers

Answer:

An independent variable is a variable that represents a quantity that is being manipulated in an experiment. ... In the context of a function, the independent variables are the inputs to the function and the dependent variables are the outputs of the function.

how many times longeris the perimeter of the shorter side?

Answers

Answer: Which shape are you talking about?

I need help i don't understand/

Answers

Answer:

1. A

2. C

Step-by-step explanation:

If they are corresponding, so their angle measures are the same. Hope this helps. :)

Answer:

1) 1 and 6

2) 110. these are corresponding angles so they are congruent

Step-by-step explanation:

amanda is 25 years old. in 5 years she will be twice as old as simone how old i simone

Answers

We could use Algebra for this question but it’s quite simile so won’t need it. If Amanda is 25, when we add on 5 years she’ll be 30. Now it says when she’s 30, she will be twice as old as Simone. Implying that Simone will be half of Amanda’s age. In this case 30/2 = 15. So Simone must be 15.
Simone is 12 1/2 years old. 25/2=12.5

A tram moved downward 9 meters per second for 54 seconds. What was the total change in the tram's elevation?

Answers

Answer:

6

Step-by-step explanation:

Answer:

-486

Step-by-step explanation:

a student answered 86% of the questions on a test correctly. he received a grade of 98%. how many questions were on the test?

Answers

Let the number of questions on the test equal X which would be 100%

They answered 86 which equaled 98

Set up a ratio:

X/86 = 100/98

Cross multiply:

98X = 8600

Divide both sides by 98:

X = 87.75

Round to 87 questions

Use the information in the diagram to determine the height of the tree. The diagram is not to scale.

Answers

Answer:

75FT  B

Step-by-step explanation:

if the building is 150 feet, then the tree is about 50% the height of the building it is 75 feet tall or answer B


3. You miss a free throw 3/10 of the time
A) likely
B) unlikely
C) certain
D) equally likely

Answers

Out of every 10 free throws, you miss only 3.

Converting to a percentage: 3/10 = .3 x 100 = 30%.

Therefore, 3/10=30%. So, you only miss 30% of the time, which means that you make the free throws 7/10 of the time or 70%.

The answer would be that you are likely to make the free throws, so answer A.) is correct.

You miss a free throw 3/10 of the time is unlikely event. Therefore, option B is the correct answer.

What is the probability?

Probability can be defined as the ratio of the number of favourable outcomes to the total number of outcomes of an event.

We know that, probability of an event = Number of favourable outcomes/Total number of outcomes

Given that, miss a free throw 3/10 of the time.

Here, 3/10 =0.3

The total probability is always equal to unity.

If the event is “certain” to happen, the probability will be 1.

If the event is “likely” to happen, the probability will be between 1/2 and 1.

If the event has an “equal chance” to happen or not, the probability will be 1/2.

If the event is “unlikely” to happen, the probability will be between 0 and 1/2.

You miss a free throw 3/10 of the time is unlikely event.

Therefore, option B is the correct answer.

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The lawn is a circle with radius 3m.
Work out the area of the lawn.

Answers

Answer:

28.27m

Step-by-step explanation:

the formula for area of a circle is

A= π x r^2

A = π x r^2 = π x 3^2 = 28.27433

find x and y for this triangle

Answers

Answer:

x = 1.25

x = 1.75

Step-by-step explanation:

I marked the points of this triangle in the attached image so it's easier to explain.

ΔABC is similar to ΔADE, and all pairs of corresponding sides are proportional as a result.

[tex]\frac{DE}{BC}=\frac{AD}{AB}=\frac{AE}{AC}[/tex]

The length of the sides BC and DE is given, so I'll start with that and set it equal to the proportion between AB and AD.

[tex]\frac{DE}{BC}=\frac{AD}{AB}\\\\\frac{10}{8}=\frac{x+5}{5}\\\\10\times5=(x+5)\times8\\50=8x+40\\10=8x\\x=1.25[/tex]

Now, you can do the exact same thing for y:

[tex]\frac{DE}{BC}=\frac{AE}{AC}\\\\\frac{10}{8}=\frac{y+7}{7}\\\\10\times7=(y+7)\times8\\70=8y+56\\14=8y\\y=1.75[/tex]

Which three points are collinear?

Answers

according to defination of collinear points :Three or more points are said to be collinear if they all lie on the same straight line.

therefore, A,B,C points are collinear.

IF YOU KNOW IT ANSWER IT!!!! I ONLY HAVE 4 MINUTES ​

Answers

Answer:

A, the first one.

Step-by-step explanation:

Please rate 5 stars and add thanks. Goodluck on the rest

Answer:Option A is correct.Step-by-step explanation:x/4 - 5 < -6=> x/4 < -6 + 5=> x/4 < -1=> 4 × x/4 < -1 × 4=> x < -4Conclusion:

Therefore, Option A is correct.

Hoped this helped.

[tex]BrainiacUser1357[/tex]

Which of the following gives and example of an equation that is non-linear?
A y=2x+1
B y=15/x
C y=10x
D y=x/5

Answers

The answer is A. y=2x+1

A is the only equation in which the numbers are not naturally written,but there is another numbering being either taken or added to the situation (+1). B and D both are divided which is linear, and C is multiplying which is also linear. This only leaves us with A.

Hope this helps. & don't forget to drink water <3

You went 160 miles in 20 hours. What is the constant of proportionality that relates the y, the distance in miles to x, the time in hours?

Answers

Answer:

X = Y times 8

Step-by-step explanation:

You need to figure out how many miles you can go in an hour.

160/x and 20/1

20x=160

x=8

You can go 8 miles in 1 hour.

Therefore, if X is 1 and Y is 1

1 = 8

1 hour equals 8 miles

3x+4=7-2x
Solve this equation for x with steps

Answers

Simplifying
3x + 4 = 7 + -2x

Reorder the terms:
4 + 3x = 7 + -2x

Solving
4 + 3x = 7 + -2x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '2x' to each side of the equation.
4 + 3x + 2x = 7 + -2x + 2x

Combine like terms: 3x + 2x = 5x
4 + 5x = 7 + -2x + 2x

Combine like terms: -2x + 2x = 0
4 + 5x = 7 + 0
4 + 5x = 7

Add '-4' to each side of the equation.
4 + -4 + 5x = 7 + -4

Combine like terms: 4 + -4 = 0
0 + 5x = 7 + -4
5x = 7 + -4

Combine like terms: 7 + -4 = 3
5x = 3

Divide each side by '5'.
x = 0.6

Answer: x = 0.6

Which expression is equivalent to 3 2 times 3-5 ?

Answers

Answer:

A)

Step-by-step explanation:

giving brainliest to anyone who solves this question CORRECTLY WITH NO LINKS

5 ti the fifth power + 16 divided by 19 times 20 plus one equals ?????

Answers

Answer:

3307.31578947

Step-by-step explanation:

Answer:

I believe it's [tex]\frac{62839}{19}[/tex], or 3307.31578947

Step-by-step explanation:

hope this helps! :D

have a miraculous day!! <3

brainliest will be immensely appreciated uwu

A cyclist travels 4 miles in 20 minutes and then a further 6 miles in 30 minutes without stopping. Calculate the cyclist's average speed in mph.​

Answers

Answer:

24mph

Step-by-step explanation:

convert 20 mins and 30 mins to hrs by dividing by 60

4/(20/60)=12

6/(30/60)=12

12+12=24

Cyclist's average speed is 12 mph.

What is Speed?

Speed is calculated as the ratio of the distance travelled by an object to the time taken to cover the distance.

It can also be defined as the rate of change of position of anything in any direction.

Speed is a scalar quantity as it does not have direction.

Total distance travelled by the cyclist = 4 miles + 6 miles

                                        = 10 miles

Total time taken by the cyclist = 20 minutes + 30 minutes

                                                  = 50 minutes

We need the average speed in mph or miles per hour.

We know that,

60 minutes = 1 hour

1 minute = 1/60 hour

50 minutes = [tex]\frac{1}{60}[/tex] × 50 hour

                   = [tex]\frac{5}{6}[/tex] hour

Average Speed = Total distance travelled / Total time taken

                          = 10 miles / (5/6) hour

                          = 10 × [tex]\frac{6}{5}[/tex]

                          = 12 miles per hour

Hence the average speed of the cyclist is 12 miles per hour.

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Which expression is equivalent to 440d2 - 176d?

Answers

Answer:

expression equivalent is = 88d(5d-2)

The computer monitor to the right has a length of 44 inches and
a width of 38 inches. Find the length of the diagonal. Round your
answer to the nearest hundredth.

Answers

Answer:

58.14 inches

Step-by-step explanation:

Pitagoras:

Diagonal² = length² + width²

Diagonal² = 44² + 38²

Diagonal² = 1936 + 1444

Diagonal² = 3380

√Diagonal² = √3380

Diagonal = 58.137 = 58.14inches

i just need to know if this is correct and if i need to fix anything

Answers

Answer:

its correct

Step-by-step explanation:


A rectangular garden has a length of 3x + 13 feet and a width of 3x feet. Which expression represents the
area of the garden in square feet?

Answers

Answer:

40

Step-by-step explanation:

so it is 3X3 +13 =40

help help help help help help help help

Answers

Answer:

necklace

Step-by-step explanation:

It is the only one with a negative elevation

Write the equation of the line that passes through the point -3,4 and slope of 6

Answers

Answer: y=6x+22
Explanation:
1. we first start with the equation y=Mx+b
2. Then we plug in the slope (6) into M
3. Now you have y=6x+b
4. Now you plug in your point (-3,4) into the y and the x values
5. You are now stuck with 4=6(-3)+b
6. Now multiply 6 and -3 which gets you -18
7. Your new equation is now 4=-18+b
8. Now add 18 to both sides of the equals sign
9. Now you have 4+18=b
10. Add 4+18 which gets you 22. B is 22
11. Plug b into the equation and turn the values of x and y back to those letters
12. You now have the answer of y=6x+22
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