if the diameter of a circle double, the circumference of the larger circle is how many times the circumference of the original circle?

Answers

Answer 1

The circumference of the larger circle is 2 times the circumference of the original circle.

What is the circumference and area of a circle?

Let r be the radius of the circle.

Then the area of the circle will be

A = πr² square units

The circumference of the circle will be

C = 2πr units

If the diameter of a circle doubles, the circumference of the larger circle.

Let d be the diameter of the circle.

Then the diameter of the small circle is d and the diameter of the other circle is 2d.

Then the ratio of the circumference of the circles will be

⇒ 2πr₂ / 2πr₁

⇒ 2r₂ / 2r₁

⇒ 2d / d

⇒ 2

The circumference of the larger circle is 2 times the circumference of the original circle.

More about the circumference of a circle link is given below.

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Related Questions

b/4+2=-1
b=?

answer please

Answers

Answer:

b=−12

Step-by-step explanation:

The graph of linear function f passes through the point (4,–2) and has a slope of –1.


What is the zero of f ?

Answers

Answer: 2

Step-by-step explanation:

y=mx + b

plug in known values

-2= (-1)(4) + b

b= 2

Equation: y= -x+2

graph and locate the x-intercept

(Resolve) -12 x 5 = 07 60 -60 0-7

Answers

Answer:

-60

Step-by-step explanation:

braincells

Which number can each term of the equation be multiplied by to eliminate the decimals before solving?

–m + 0.02 + 2.1m = –1.45 – 4.81m

0.01

Answers

Answer:

Multiply by 100

Step-by-step explanation:

The equation is given as:

-m + 0.02 + 2.1m = -1.45 - 4.81m

To eliminate the decimals from all the terms, we must multiply by a number that make all the coefficients integers.

The decimal coefficients and independent terms are

0.02, 2.1, 1.45, 4.81

Note the maximum number of decimals found in all of them is 2. Thus, multiplying by 100 all the decimals will vanish as follows:

100(-m + 0.02 + 2.1m) = 100(-1.45 - 4.81m)

-100m + 2 + 210m = -145 - 481m

Now all terms have integer coefficients as required.

Answer: Multiply by 100

7 × 105 − 5,100 whats the answer

Answers

Answer:

-4,365

Step-by-step explanation:

Grant spent half of his weekly allowance. Then he earned $5 back by doing the dishes. What is his weekly allowance if he ended with $15?

Answers

Answer:

Grant's weekly allowance is $20.

Step-by-step explanation:

We know that Grant ended with $15. We can say that Grant's weekly allowance is x.

x/2 + 5 = 15

Now to solve:

x/2 + 5 - 5 = 15 - 5 (subtract 5 from both sides to isolate the x/2)

x/2 = 10

x/2 * 2 = 10 * 2 (multiply both sides by 2 to isolate the x)

x = 20

Grant's weekly allowance is $20.

if 4-3(2-x)<10+x what is the greatest possible integer value of x?

Answers

Answer:

4-3(2-x) < 10+x

4 -6 +3x< 10 + x

-2 +3x< 10 +x

2x< 12

x<6

↣ First we solve the Inequality.

[tex]4-3(2-x)<10+x[/tex]

[tex]4-6+3x<10+x[/tex]     ↣ Distribute -3 in (2-x) for easier in solving.

[tex]3x-2<10+x\\3x-x<10+2\\2x<12\\x<6[/tex]

Thus, the answer is x < 6.

↣ Therefore, the greatest possible Integer value of x is 5.

HELPPPPP ITS VERY URGENT!!!!!!

Answers

Answer:

LN i think.. i'm not sure tho

Step-by-step explanation:

When are two distinct lines parallel?

Answers

Answer:

if the line keeps going and theynever touch

Step-by-step explanation:

Answer:

Two lines are parallel when are side by side and if the lines kept on going, they would never collide with each other

Step-by-step explanation:

Which equation represents a line that passes through the two points in the
table?
X Y
3 3
6 5

Answers

Answer: The slope is 2/3, y=2/3x+1

Step-by-step explanation: The 2 points, (3,3) and (6,5), use the method y2-y/x2-x1. Then you find the slope that way, then use point slope form for the slope intercept form: y-y1=m(x-x1), then substitute and solve to get y=2/3x+1

WILL GIVE BRAINLEST IF RIGHT
Which expression is equivalent to this expression?

34(4h – 6)
A. 3h – 92
B. 4h + 92
C. 3h – 6
D. 4h + 6

Answers

Answer:

C. 3h - 6

Step-by-step explanation:

what is (5.91 x 10^-3) - (8.7 x 10^10) written in a scientific notation? Please answer asap thank you :))

Answers

Answer:

Please check the explanation.

Step-by-step explanation:

Given the expression

[tex]\left(5.91\times \:10^{-3}\right)-\left(8.7\times \:10^{10}\right)[/tex]

[tex]\mathrm{Remove\:parentheses}:\quad \left(a\right)=a[/tex]

[tex]=5.91\times \:10^{-3}-8.7\times \:10^{10}[/tex]

as

[tex]5.91\times \:10^{-3}[/tex]

[tex]\mathrm{Apply\:exponent\:rule}:\quad \:a^{-b}=\frac{1}{a^b}[/tex]

[tex]=5.91\times \frac{1}{10^3}[/tex]

[tex]=\frac{5.91}{1000}[/tex]

[tex]=0.00591[/tex]

similarly

[tex]8.7\times \:10^{10}[/tex]

Convert element to a decimal form

[tex]10^{10}=10000000000[/tex]

so

[tex]=10000000000\times \:8.7[/tex]

[tex]\mathrm{Multiply\:the\:numbers:}\:8.7\times \:10000000000=87000000000[/tex]

[tex]=87000000000[/tex]

Thus, the expression becomes

[tex]\left(5.91\times \:\:10^{-3}\right)-\left(8.7\times \:\:10^{10}\right)=5.91\times \:\:10^{-3}-8.7\times \:\:10^{10}[/tex]

                                                [tex]=0.00591-87000000000[/tex]

                                                [tex]=-86999999999.9941[/tex]

Hence,

converting -86999999999.9941 in a scientific notation

In order to make our job easier we will remove the sign "-" from number -86999999999.9941 (we will write "-" at the final solution). So after this step we have:

−86999999999.9941  ⟶  86999999999.9941

In order to write number 86999999999.9941 in scientific notation, we need to move the decimal point from its current location (black dot) to the new position such as:

8.6999999999.9941

So, we need to move the decimal point 10 places to the right.

This means that the power of 10 will be positive 10.

Now we have that the

Number part = 8.69999999999941 and

Exponent part = 10

Thus, we conclude that:

−86999999999.9941 = − 8.69999999999941 × 10¹⁰

what is the answer please help

Answers

Answer:

B: 22.5 degrees

Step-by-step explanation:

The interior angles of a pentagon add up to 540 degrees

(if you dont believe me you can turn a pentagon into three triangles, 3x180 = 540)

So you have four same angles say measure "x" degrees, and one final one that measures "5x" degrees, so 9x = 540, and x = 60

Unless I read the problem wrong, 60 degrees is the answer which is not an option :P

Edit: Yea I read it wrong, the final angle is 5 times the other four angles COMBINED, so that angle measures "20x" degrees.

The total would be 24x = 540, and so x = 22.5

Lucy cuts 4 squares with side length x in. from the corners of a 6 in. by 9 in. cardboard rectangle. She folds the remaining cardboard to make a tray that is x in. high. Write and simplify a polynomial function for the volume V of the tray in terms of x.

Answers

Answer:

Lucy cuts 4 squares with side length x in. from the corners of a 6 in. by 9 in. cardboard rectangle. She folds the remaining cardboard to make a tray that is x in. high. Write and simplify a polynomial function for the volume V

Step-by-step explanation:

9v

The polynomial function for the volume V of the tray in terms of x will be;

⇒ 4x³ - 30x² + 54x

What is Function?

A relation between a set of inputs having one output each is called a function.

Given that;

Lucy cuts 4 squares with side length x inch from the corners of a 6 inch by 9 inch cardboard rectangle.

She folds the remaining cardboard to make a tray that is x inch high

Now,

By the give condition we get;

Length of tray = 9 - 2x

Width of tray = 6 - 2x

Height of tray = x

So., The volume of the tray is expressed as;

Volume = x (9 - 2x) (6 - 2x)

             = x (54 - 18x - 12x + 4x²)

             = x (54 - 30x + 4x²)

             = 4x³ - 30x² + 54x

Thus, The polynomial function for the volume V of the tray in terms of x will be;

⇒ 4x³ - 30x² + 54x

Learn more about the volume visit:

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There are 3072 books in the school library if 96 students reads the same number of books how many books would each student need to read?

Answers

Answer:

32 books each

Step-by-step explanation:

please help i need slope! algebra 1

Answers

Answer:

slope: -1/3     y intercept: 2

Step-by-step explanation:

I'm also in Algebra 1 and I'm not completely sure.

Identify the angle relationship
2

Answers

Answer:

which angle relarion send angle photo also

I need help with this one

Answers

Answer:

c

Step-by-step explanation:

mr bob the baker made 24 pies on monday and 48 on wednesday how many pieces did he made in all

Answers

Answer:

72 pies

Step-by-step explanation:

24 pies + 48 pies = 72 pies

PLEASE HELP I HAVE 6 MINUTES LEFT!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:the answer is D

Step-by-step explanation:

Simplify the expression:
10t - 40 + 3t + t

Answers

Answer:

Your correct answer is 14t - 40

Step-by-step explanation:

Combine like terms:

10t + 3t + t = 14t

Since there are no other integers, just tag on the -40:

14t - 40

**please mark brainliest!!

5 ( x + 3 - 5x)
PLZ WHAT IS THIS IN SIMPLEIST FORM WILL GIVE BRAINLIEST

Answers

Answer:

-20x + 15

Step-by-step explanation:

Answer:  -20x + 15

Step-by-step explanation:  

5(x + 3 - 5x)

5(-4x +3)

5(-4x +3)

f(x) = x + 9, g(x) = x2 − 4x, h(x) = x4 + 2x3

What is the degree of (f º g º h)(x)?


7

8

21

24

Answers

Answer:

the degree of the function is 8

Step-by-step explanation:

        (f º g º h)(x) = [tex]f(g(h(x)))[/tex]

first lets evaluate g(h(x))

         [tex](x^4 + 2x^3)^2 - 4(x^2 + 2x^3)[/tex]

simplify

        [tex]x^8 + 4x^3 + 4x^6 - 4x^4 -8x^3[/tex]

        [tex]x^8 + -4x^3 + 4x^6 - 4x^4[/tex]

you can easily see that the highest power term is 8 meaning the degree of the function is 8

Answer:

its 8 :)

Step-by-step explanation:

Farmer Simpson was collecting eggs and noticed that each of his 6 hens laid the same
number of eggs this week. If Farmer Simpson collected 78 eggs, how many eggs did each
hen lay?
15
7
13
18

Answers

For your answer it is : 13 eggs

To find your answer you would do 78 divided by 6.

I really hope this helps.
Stay safe during the rest of 2020.

For a sledding trip you randomly select one of your four hats- red, blue with stripes, purple, or black. Write a ratio that compare the number of red hats to the number of total hats.​

Answers

The answer is 1:4 :)

Jana uses 20 cards to play a memory game the cards are either animal cards or fruit cards. The ratio of animal cards to fruit cards is 2:3 How many if the 20 cards are animal cards? Of the fruit cards, 1/3 have bananas on them. How many cards have bananas on them. Show or explain your work.

Answers

Given that,

Total no of cards = 20

The ratio of animal cards to fruit cards is 2:3

No of animal cards = 20

Solution,

Let there are 2x animal cards and 3x fruit cards. ATQ,

2x+3x = 20

5x = 20

x = 4

Animal cards = 2x

= 2(4)

= 8

Fruit cards = 3x

= 3(4)

= 12

It is also mentioned that, of the cards, 1/3 have bananas on them. It means,

[tex]B=\dfrac{1}{3}\times 12\\\\=4[/tex]

Hence, 4 cards have bananas on them.

Someone please help me

Answers

Your answer is correct

The map of a community shows that a lake is 6 inches away from a library. The scale of the map is 14 inch represents 3.5 meters. How far apart are the actual lake and library? A. 42 m A. 42 m, , B. 84 m B. 84 m C. 49 m C. 49 m D. 14 m D. 14 m

Answers

Answer:

Real distance = 84 meter

Step-by-step explanation:

Given:

Map distance = 6 inches

Map scale 1/4 inch = 3.5 m

Computation:

0.25 inches = 3.5 m

Computation:

Real distance = 6/0.25[3.5]

Real distance = 24[3.5]

Real distance = 84 meter

__Na2O + __ H2O → __NaOH

Answers

Answer:

Na20+H20 -> 2NaOH

Step-by-step explanation:

Which of the following can be used to prove that triangle ABC is congruent to triangle DEF?

Answers

Answer:

SAS congruence theorem

Step-by-step explanation:

since we are given the two congruent sides and the right angle. We know all right angles are congruent and the right angle is an angle that is between the two sides which is why it is SAS. hope this helps :))

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