If the radius of the circle was doubled what effect would it have on the area

Answers

Answer 1

Answer:

Step-by-step explanation:

If the radius of a circle is doubled, the area of the circle will be quadrupled and the circumference will also be doubled. This makes sense because the area of a circle is directly proportional to the square of the radius of the circle (if the radius of a circle is increased x times, its area will be increased to x^2 times the original area), whereas the circumference is proportional to the size of the radius (if the radius of a circle is increased x times, its circumference will increase x times).


Related Questions

The perimeter of a rectangle is 42 inches. If the width of the rectangle is 6 inches, what is the length? A. 12 inches B. 15 inches C. 21 inches D. 40 inches

Answers

Answer: 15 Inches

Step-by-step explanation:Remember that the Perimeter of a rectangle is the distance around it.

So,

    Perimeter = Length + Width + Length + Width

or

     P = 2L + 2W

If P=42 inches and W = 6 inches,

    42 = 2L + 2(6)

    42 = 2L + 12

    30 = 2L              [subtract 12 from both sides]

    15 = L               [divide both sides by 2]

The length (L) is 15 inches.

The length (L) is 15 inches. so the correct option is B.

What is perimeter?

Its the sum of length of the sides used to made the given figure.

It is given that the Perimeter of a rectangle is the distance around it.

Given that the perimeter of a rectangle is 42 inches. If the width of the rectangle is 6 inches then we need to find the length.

So,

The Perimeter = Length + Width + Length + Width

Let the length of the rectangle = l

the width of the rectangle = w

or P = 2L + 2W

If P=42 inches and W = 6 inches,

42 = 2L + 2(6)

42 = 2L + 12

30 = 2L            

L = 15

Hence, The length (L) is 15 inches.

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Write the quadratic equation whose coefficient with x2 equal to 1 and roots are:

1/2√3 and 2√3

Answers

Answer:

[tex]x^{2}-\frac{5\sqrt{3}}{2}x+3[/tex]

Step-by-step explanation:

we know that

The quadratic equation is equal to

[tex](1)(x-\frac{\sqrt{3}}{2})(x-2\sqrt{3})\\ \\=x^{2} -2\sqrt{3}x-\frac{\sqrt{3}}{2}x+3\\ \\=x^{2}-\frac{5\sqrt{3}}{2}x+3[/tex]      

Please help me need before Monday

Answers

Answer:

D 13

Step-by-step explanation:

(b^4)^4         b^5 * b^x

-------------- = ----------------

b^2                 b^4

We know that a^c^d = a^ (c*d)

b^(4*4)         b^5 * b^x

-------------- = ----------------

b^2                 b^4

b^16         b^5 * b^x

-------------- = ----------------

b^2                 b^4

We know that a^ c * a^d = a^ (c+d)

b^16              b^(5+x)

-------------- = ----------------

b^2                 b^4

We know that a^c / a^d = a^ (c-d)

b^(16-2) = b^(5+x-4)

b^14 = b^(1+x)

Since the base is the same, the exponent must be the same

14=1+x

Subtract 1 from each side

14-1 = 1+x-1

13 =x

What is the Cost of $700 tablet computer that is on sale at 15% off of the local sales tax rate is 4%?

Answers

Answer:

$618.80

Step-by-step explanation:

If the tablet is on sale for 15% off, you pay 85% of the original price.

85% of $700 is

700(0.85) = $595

You pay 4% sales tax on $595, which is

$595(0.04) = $23.80

The total cost you pay is $595 + $23.80 = $618.80

Find the exact circumference of a circle with the given radius. miles C = ¼x miles x miles 2x miles

Answers

The correct option is B.

The exact circumference of a circle with radius X/2 miles is Xπ miles.

To find the circumference of a circle, we use the formula: Circumference (C) = 2πr, where r is the radius of the circle. Given that the radius is X/2 miles, we substitute this value into the formula:

C = 2π × (X/2)

  = Xπ miles

Therefore, the exact circumference of the circle with radius X/2 miles is Xπ miles.

The correct answer is B) xπ miles.

In summary, to find the circumference, we simply multiply the radius (X/2) by 2π, which gives us Xπ miles. This answer aligns with option B) xπ miles.

The complete question is here:

Find the exact circumference of a circle with the given radius.

X/2 miles

C = _____

A) ¼xπ miles

B) xπ miles

C) 2xπ miles

Plz help !! Needed to graduate

Answers


[tex]x {}^{2} - x - \frac{5}{2} = 0[/tex]
(1±√(1-4(1)(-5/2))/(2)

(1±√1+10)/(2)

[tex] \frac{1 + \sqrt{11} }{2} \\ \frac{1 - \sqrt{11} }{2} [/tex]


please help me anyone

Answers

Answer:

57 in²

Step-by-step explanation:

S=1/2*8*3=12

4s+9=4*12+9=57

What is the actual distance between Saugerties and Kingston? scale: 1 inch=2.5 miles 4 in

Answers

Answer:

The distance between Saugerties and Kingston is 10 miles.

Step-by-step explanation:

4*2.5 = 10.

Solve the problem. six times Tim’s age is 54. His sisters age times three is also 54. How old are Tim an his sister Amy?

Answers

Final answer:

Tim is 9 years old, and Amy is 18 years old. We found this by dividing 54 by 6 and 3 respectively, based on the given equations 6T = 54 and 3A = 54.

Explanation:

To solve the problem involving Tim and his sister Amy's ages, we need to set up equations based on the information given. The problem states that six times Tim's age is 54 and that three times Amy's age is also 54.

Let's let T represent Tim's age and A represent Amy's age. We can set up the following two equations based on the problem:

6T = 543A = 54

To find Tim's age, we divide both sides of the first equation by 6:

T = 54 / 6

T = 9

So, Tim is 9 years old.

To find Amy's age, we divide both sides of the second equation by 3:

A = 54 / 3

A = 18

So, Amy is 18 years old.

A computer is programmed to accept a number, add 4 to it, and then multiply the sum by 5. Ifx represents the number first fed into the machine, and the result of the first run is then fed back into the computer, what will the result of the second run be?

Answers

Answer:

=[{(x+4)*5} + 4] * 5

Step-by-step explanation:

If x is input

Adding 4

=x+4

then multiplying by 5

=(x+4)*5

Giving the result of first run in second will give

=[{(x+4)*5} + 4] * 5

ise is shown in this scale drawing. The height of the horse in the drawing is 4.5 inches
The scale that maps the drawing to the actual horse is 1 inch to 1.5 feet.
Scale Drawing of a Horse
4.5 in
Using the scale given, enter the actual height of the horse, in feet.

Answers

6.75 feet is the actual height of the horse

Coterminal angle help

Answers

Answer:  320

Step-by-step explanation:

Coterminal means it is in the same place on the Unit Circle but with one or more rotations clockwise or counterclockwise.

Note: one rotation is 360°

-760 + 360 = -400

                     -400 + 360 = -40

                                           -40 + 360 = 320  

320 is between 0 and 360 so this is the angle we are looking for!

which point is a solution to the inequality shown in this graph

Answers

Answer:

(1, 5)

Step-by-step explanation:

You need a point in the shaded region that is not on the line of the graph.

The points can't be on the line because the line is a dotted line, which means there is either a < or > sign in the inequality, so the solutions are strictly less than or greater than the values on the line.

 Points A and B are on line so they aren't solutions.

Point (5, -5) is below the line, so that isn't a solution for this equation either

Point (1, 5) is in the shaded region, so it's a solution

For the circle with equation (x-2)^2+(y+3)^2=9, answer each question. a) whats coords of the center? b) what are the radius and diameter of the circle? c) graph.

Answers

Answer:

a) center (2, -3)b) radius r = 3c) in the attachment

Step-by-step explanation:

The standard form of an equation of a circle:

[tex](x-h)^2+(y-k)^2=r^2[/tex]

(h, k) - center

r - radius

We have:

[tex](x-2)^2+(y+3)^2=9\\\\(x-2)^2+(y-(-3))^2=3^2[/tex]

a) center (2, -3)

b) radius r = 3

c) in the attachment

The answers are:

a) The point (2, -3).b) The radius is 3 units, and the diameter is 6 units.c) The graph can be seen below.

What is the equation of a circle?

The equation of a circle centered in the point (a, b) of radius R is given by:

(x - a)^2 + (y - b)^2 = R^2

Then for the equation:

(x-2)^2+(y+3)^2 = 9 = 3^2

We can see that:

a) The center is the point (2, -3)

b) The radius is R = 3, and the diameter is twice the radius, so it is equal to 6.

c) The graph can be seen below:

If you want to learn more about circles, you can read:

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It takes 20 minutes for 5 people to paint 5 walls how many minutes does it take 9 people to paint 9 walls

Answers

5×4 is 20. So I figure 9×4 is 36. 36 minutea

Answer: 20 minutes

Step-by-step explanation:

Imagine that each person is assigned one wall, and all 5 people begin painting at the same time.

Since everyone will finish painting their assigned wall after 20 minutes, it takes one person 20 minutes to paint one wall.

If we have 9 people and 9 walls, we can again assign one wall to each person.

Everyone will take 20 minutes to paint their assigned wall.

In other words, it takes 20 minutes for 9 people to paint 9 walls.

Luana wants to buy a pedometer. The pedometer originally sold for $64.50. It is now on sale for off. Luana also uses a coupon to get an additional 40% off the discounted price. What is the final price of the pedometer?

$28.38

$34.83

$58.05

$42.57

Answers

Answer:

The final price is $34.83

Step-by-step explanation:

we know that

1) The original price is $64.50

2) Is now on sale for 1/10 off

so

the new price is

$64.50(1-0.10)=$58.05

3) Get an additional 40%

$58.05(1-0.40)=$34.83

Will mark brainliest.
3x+2.4 >_ 3.0
Answer X >_0.2

Answers

Answer:

x < -1.8

Step-by-step explanation:

First, subtract 2.4 from each side, you will get 3x > -5.4

Second, divide by 3 on both sides, this will make the > turn into <.

Finally you will end up with x < -1.8.

Mark brainliest plz!

Answer:

The answer to 3x+2.4 > 3.0 is x > 0.2

Step-by-step explanation:

a store manager sends an email survey to customers who have registered at the store's websites. Why is this survey biased?​

Answers

The survey is biase because it is only surveying shoppers that have registered on the website,.

Write and Y varies directly as x. y 20 when x graph the direct variation function.

Answers

Answer:

y = 5x

Step-by-step explanation:

20 = 5(4)

20 = 20

Since they directly vary, this is a linear equation, and the slope is 5.

y = mx + b

y = 5x + b

20 = 20 + b

b = 0

So the equation is

y = 5x

I don't know how to do this, help please.

Answers

Answer:

1000 units wide, 300 units is the height

Step-by-step explan

you do 500-(-500) for the wideness, 1000 and for height, 0-(-300) is 300

I ASK SO MUCH OF YOUR HELP, PLEASE. Let x + y = 11 and x^2 + y^2 = 325. What is the value of x^3 + y^3? PLEASE EXPLAIN, TOO.

Answers

Answer:

x³+y³=4697

Step-by-step explanation:

x+y=11

y=11-x

325=x²+y²

=x²+(11-x)(11-x)

=x²+121-11x-11x+x²

325=2x²-22x+121

0=2x²-22x-204

=(2x+12)(x-17)

0=2x+12 or 0=x-17

-12=2x 17=x

-6=x

y=11-x

y=17 or -6

(-6,17) or (17,-6)

=x³+y³

=(-6)³+(17)³

=4697

Which vertex in EFGH corresponds with the vertex B in ABCD?

HELP PLZ!!

Answers

Answer:

F

Step-by-step explanation:

Each vertex of ABCD corresponds to the vertex of EFGH in the same position.

Parallelogram ABCD is similar to parallelogram EFGH.

Vertex A corresponds to vertex E.

Parallelogram ABCD is similar to parallelogram EFGH.

Vertex B corresponds to vertex F.

Parallelogram ABCD is similar to parallelogram EFGH.

Vertex C corresponds to vertex G.

Parallelogram ABCD is similar to parallelogram EFGH.

Vertex D corresponds to vertex H.

please answer quick!


A phone booth is 3 ft. by 4 ft. by 7 ft. What is the amount of space inside the phone booth?

Answers

Answer:

84

Step-by-step explanation:

3 times 4= 12

12 times 7= 84

A water dispenser has a capacity of 20,000 milliliters. What is its capacity in liters?
Be sure to include the correct unit in your answer.

Answers

Answer:

20

Step-by-step explanation:

So to get 20 all you had todo was multiply 20,000 by 0.001, because milliliters converted into liters is 1 milliliter= 0.001 liters.

Answer:

20 Liters

Step-by-step explanation:

One way to look at it is that there are 1000 mL in one L.  But I think a better way in general for  unti conversions is to do it like this.

20000 ml * [tex]\frac{1L}{1000 mL}[/tex] Where you can just cancel out the units.  Hopefully it made sense.  If you were converting from L to ml you would use [tex]\frac{1000 mL}{1 L}[/tex]

Jorge volunteers 2/3 hour at the animal shelter on wednesday. He volunteers 5 times as many hours on saturday. How many hours does Jorge volunteer on saturday?

Answers

Final answer:

To find out how many hours Jorge volunteers on Saturday, we multiply his Wednesday volunteer hours of 2/3 hour by 5, which gives us 10/3 hours or 3 1/3 hours.

Explanation:

If Jorge volunteers for 2/3 hour at the animal shelter on a Wednesday and volunteers 5 times as many hours on Saturday, we can calculate the hours he volunteers on Saturday. First, multiply the time he volunteers on Wednesday by 5:

2/3 hour × 5 = 10/3 hours, which is equivalent to 3 1/3 hours or simply 3.33 hours when converted to decimal form.

Therefore, Jorge volunteers 3 1/3 hours or 3.33 hours on Saturday at the animal shelter.

Given: AD≅AO
Find: m∠OAD, m∠DBA.

Answers

[tex]OA=OD=AD=R\Rightarrow \bigtriangleup OAD\: is\: an\: equilateral\: triangle \\ \Rightarrow \widehat{AOD}=\widehat{OAD}=\widehat{ODA}=60° \\ \widehat{ABD}= \frac{\widehat{AOD}}{2} = \frac{60°}{2} = 30°[/tex]

Answer:

Step-by-step explanation:

Given: AD≅AO

To find: m∠OAD and m∠DBA.

Solution: It is given that AD≅AO, and also OA≅OD (Radius of circle), therefore ΔAOD is an equilateral triangle.

Hence, m∠OAD=m∠ODA=m∠AOD=60°.

Now, we know that the intercepted angle is half of the central angle, thus

[tex]m{\angle}DBA=\frac{m{\angle}AOD}{2}[/tex]

⇒[tex]m{\angle}DBA=\frac{60^{\circ}}{2}[/tex]

[tex]m{\angle}DBA=30^{\circ}[/tex]

Hence, the measures of [tex]{\angle}OAD[/tex] and [tex]{\angle}DBA[/tex] are [tex]60^{\circ}[/tex] and  [tex]30^{\circ}[/tex] respectively.

Which term gives the horizontal length of one cycle of a periodic function

Answers

Answer:

Period, but I have to add more characters so it'll let me post this answer.

Period gives the horizontal length of one cycle of a periodic function as 2π.

Given that,
To determine which term gives the horizontal length of one cycle of a periodic function.

What are functions?

Functions is the relationship between sets of values. e g y=f(x), for every value of x there is its exists in a set of y. x is the independent variable while Y is the dependent variable.

Here,
In the periodic function 1 period is consist of 2π on the horizontal axis, so, the period represents the horizontal length of the periodic function.

Thus, Period gives the horizontal length of one cycle of a periodic function as 2π.

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write an equation that can be used to find the total commission, C, Harlan will earn for the cost, s, of the shoes that he sold..​

Answers

Answer:

See below. An example is C = 0.2s.

Step-by-step explanation:

You can write an expression to represent any situation. Harlan makes a commission which is usually a percentage of the price. For example, if Harlan earns 20% on each purchase then when he sells a $100 he earns $20 of commission. For any price or cost on shoes s, this would be 0.2s. His commission C = 0.2s.

What is 6Σ n=1 [4(-5)^n-1] equal to?

Answers

Answer:

-10416.

Step-by-step explanation:

This is a Geometric Series with first term 4 and common ratio -5.

Sum of 6 terms = a1 .  (r^6  - 1 )/ ( r - 1)

= 4 *( (-5)^6 - 1) / (-5-1)

= -10416  (answer).

Answer:

-10416

Step-by-step explanation:

What is the standard form equation of the line shown below? (1 point) Graph of a line going through negative 2, 3 and 1, negative 3
y + 3 = −2(x − 1)
y = −2x − 1
2x + y = −1
−2x − y = 1

Answers

Answer:

y= -2x-1

Step-by-step explanation:

In solving, find the gradient from coordinates given , then use the gradient with one of the pairs to find the equation in form of y=mx+c

finding the gradient

points(-2,3) and (1,-3)

m=change in y/change in x

change in y=-3-3=-6

change in x=1--2=3

m=-6/3 =-2

taking the coordinates (1,-3) and (x,y), the equation will be

y=mx+c, where m=-2

(y--3)/(x-1) =-2

(y+3)/(x-1)= -2

(y+3) = -2(x-1)

y+3=-2x+2

y=-2x+2-3

y= -2x-1

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