what is the area of a circle with a radius of 2 cm anda circle with a radius of 4 cm

Answers

Answer 1

Answer:

Step-by-step explanation:

area = pi * r^2

area = pi * 2^2

area = 4pi

area = pi * 4^2

area = 16pi


Related Questions

Fill in the missing terms to complete the factorization. 15x^2 + x - 2 = (? -1) (? + 2)
a- 3x, 5x

b- x, 15x

c- 5x, 3x

d- 15x, x

Answers

The missing term of the factorization equation is A = ( -15x - 1 ) ( x + 2 )

Given data ,

Let the equation be represented as A

Now , the value of A is

A = -15x² - 31x - 2

On simplifying , we get

The expanded form of the expression ( -15x - 1 ) ( x + 2 ) can be calculated using the distributive property of multiplication over addition

So , on factorizing , we get

A = ( -15x - 1 ) ( x + 2 )

Hence , the factorized equation is A = ( -15x - 1 ) ( x + 2 )

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The complete question is attached below :

Fill in the missing terms to complete the factorization. 15x² + x - 2 = (? -1) (? + 2)

a- 3x, 5x

b- x, 15x

c- 5x, 3x

d- 15x, x

Find three numbers between –0.55 and –0.54

Answers

i hope this help you i am sure that this answer is correct

Find three numbers between 0.55 and 0.54

Find the area of the triangle.
3 9
A
5
B
?] units²

Find the area of the triangle.3 9A5B?] units

Answers

The area of the triangle is 47.91 units²

How to find the area of the triangle?

When all three sides of the triangle are known we can use Heron's formula. Consider the triangle ABC with sides a, b, and c has shown in the image.

Heron’s formula is:

Area =√s(s−a)(s−b)(s−c)

where,

a, b, c are the side length of the triangle

s is the semi-perimeter. s = (a+b+c)/2

In this case:

Using the knowledge of the radius of a circle. We can say:

a = BC = 3 + 9 = 12 units

b = AC = 5 + 3 = 8 units

c = AB = 5 + 9 = 14 units

s = (a+b+c)/2

s = (12+8+14)/2

s = 34/2

s = 17 units

Area = √s(s−a)(s−b)(s−c)

Area = √17(17−12)(17−8)(17−14)

Area = √17(5)(9)(3)

Area = √2295

Area = 47.91 units²

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In this problem, you must attempt to use the Ratio Test to decide whether the series converges.

In this problem, you must attempt to use the Ratio Test to decide whether the series converges.

Answers

The answer is (A) The Ratio Test says that the series converges absolutely.

What is the ratio test?

The Ratio Test is a test used to determine whether an infinite series converges or diverges. It involves taking the limit of the absolute value of the ratio of the (n+1)th term to the nth term as n approaches infinity. If the limit is less than 1, then the series converges absolutely.

We have:

\(|a_{n+1}/a_{n}| = |(e^(n+7)*sqrt(n+3)/((n+4)!)) / (e^(n+6)*sqrt(n+2)/((n+3)!))|\)

\(|a_{n+1}/a_{n}| = e(sqrt(n+3)/sqrt(n+2)) * (n+3)/(n+4)\)

We want to compute:

\(L = lim n- > infinity |a_{n+1}/a_{n}| = lim n- > infinity e(sqrt(n+3)/sqrt(n+2)) * (n+3)/(n+4)\)

We can see that the exponent of e goes to 1 as n goes to infinity, and (n+3)/(n+4) goes to 1 as n goes to infinity. Therefore, L = 1.

Since L < 1, by the Ratio Test, the series converges absolutely.

Hence, the answer is (A) The Ratio Test says that the series converges absolutely.

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A company makes a profit of $1.38 million. This is $2.54 million more than last year.


an equation is ___ = 1.38

i’m not sure how to figure out what goes in the blank. If someone could please explain it to me that would be great!! I already know the answer to the first part of this equation. The profit last year was -1.16 million. The only part i’m confused on is how to know what goes in the blank.

A company makes a profit of $1.38 million. This is $2.54 million more than last year.an equation is ___

Answers

The profit that was made last year is -1.16 million.

How to calculate the equation?

An equation is the statement that illustrates the variables given. In this case, two or more components are taken into consideration to describe the scenario.

A company makes a profit of $1.38 million. This is $2.54 million more than last year.

Let the last year profit be x. This will be illustrated thus:

x + 2.54 = 1.38

x = 1.38 - 2.54

x = -1.16

The profit is -1.16 million.

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10 celcius equals ____ farenheight

Answers

Answer:

50

Step-by-step explanation:

\(\frac{9}{5}(10)+32=50\)

10 celcius equals ____ farenheight

Line l was mapped to Line m as shown in the graph below. please help


What transformation was applied to Line l to produce the result shown?



Line l was translated up 5 units.

Line l was reflected over the x-axis.

Line l was reflected over the y-axis.

Line l was translated 6 units to the right.

Line l was mapped to Line m as shown in the graph below. please help What transformation was applied

Answers

Line I was translate up 5 units

Josie and her brothers and sisters measured their heights and found the mean averageThe mean was 150cmJosie forgot her height. Can you work out Josie's height? 150cm, 170cm, 140cm, 155cm

Answers

Answer:

135 cm

Step-by-step explanation:

Let Jose's height = x

The mean of their heights = 150

Given the Heights:

150cm, 170cm, 140cm, 155cm

The mean is the sum if the heights divided by the number of people

Here :

(150 + 170 + 140 + 155 + x) / 5 = 150

(615 + x) / 5 = 150

615 + x = 750

x = 750 - 615

x = 135 cm

How to write 513,292 in expanded notation

Answers

Answer:

oh thats easy look so what you do is     500,000

                                                                   13,000

                                                                     1,000  

                                                                       200            

                                                                         90                    

Step-by-step explanation:                              2

your welcome ^^                                                                  

 

Brainlisted for right answer!!! 50 points!!! Please help me!!! I really need this done!!!

Brainlisted for right answer!!! 50 points!!! Please help me!!! I really need this done!!!

Answers

Step-by-step explanation:

Um sorry but I can not see the image clearly so I think that is why no one is answering. Sorry. No offense.

A survey was done to see if the city should put in another disc golf course. The survey results showed that 25 out of 200 people played disc golf. The city's population is 25,000. Using the survey results, what is predicted amount of people in the city who play disc golf?

Answers

Answer:

3,125

Step-by-step explanation:

25 out of 200 is 12.5%

and 12.5% of 25,000 is 3,125

(I'm not sure)

which expression is equivalent to (\((x^{2} )^3\)

\(x^{8}\)

\(x^{6}\)

\(x^{5}\)

Answers

x^6 because you have to multiply the exponents

Pls help
The shape below contains a triangle and a semi-
circle.
Round your responses to two decimal places.

Pls helpThe shape below contains a triangle and a semi-circle.Round your responses to two decimal places.

Answers

perimeter of the shape

167.37 units

Area of the shape

40.24 square units

How to find the perimeter of the shape

The shape is a composed of two simpler parts which consists of, namely:

The right triangle and the semi circle

Therefore, the perimeter of the shape includes perimeter of semicircle and the perimeter triangle

To complete the perimeter of the triangle we add two sides of the triangle. the opposite and the adjacent of the right triangle is given so we solve for the hypotenuse.

The hypotenuse of the triangle = \(\sqrt{ 7^2 + 6^2}\) = 9.22 units

perimeter of the shape

= perimeter of triangle side + perimeter of semicircle side

= (9.22 + 6) + (3.142 * 3.5)

= 167.37 units

Area of the shape

= area of triangle + area of semicircle

= 1/2 x 7 x 6 + 1/2 x 3.142 x 3.5^2

= 21 + 19.24

= 40.24 square units

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Arrow is planning to bake approximately 305 cookies. If 3 pounds of cookie dough make 96 cookies, how many pounds of cookie dough should he make?

Answers

Answer:   10

Step-by-step explanation: 96 divided by 3 is 32  

32 x 10 = 320 you can't get exactly 305.

A grocery orders 4 large containers of milk for every 7 small containers of milk.Which ratio could present the number large containers of milk to small containers of milk in an order from the grocery store?

Answers

Answer:

4 : 7

Step-by-step explanation:

A human hair was measured to be 8.0•10-4 inch thick. A cat hair is measured to be 4.0•10^-1. How much greater is the thickness of the cat hair than the human hair? Writ this in standard form.

Whoever gets this right I will mark brainiest and 60 points!!

Answers

Answer:

500 times

Step-by-step explanation:

Divide the thickness of a cat hair by the thickness of a human hair.

4.0 × 10^-1 / 8.0 × 10^-4 =

= 0.5 × 10^3

= 500

500 times

Review the graph.

On a coordinate plane, a circle has center (4, 0) and radius 4. Another circle has center (2, negative 3) and radius 6. The area inside of the first circle and outside of the second circle between the 2 circles is shaded.

Which system of inequalities is shown in the graph?

36 > (x + 3)2 + (y – 2)2 and 16 > (x – 4)2 + y2
36 > (x – 2)2 + (y + 3)2 and 16 > (x – 4)2 + y2
36 < (x + 3)2 + (y – 2)2 and 16 > (x – 4)2 + y2
36 < (x – 2)2 + (y + 3)2 and 16 > (x – 4)2 + y2

Review the graph.On a coordinate plane, a circle has center (4, 0) and radius 4. Another circle has center

Answers

Answer:

36 < (x - 2)² + (y + 3)² and 16 > (x - 4)² + y²

Step-by-step explanation:

This is because the shaded area is inside the first circle (centered at (4, 0) with a radius of 4) but outside the second circle (centered at (2, -3) with a radius of 6). The inequalities reflect these conditions by setting the inequality signs accordingly. The inequality with "<" for the first circle ensures that the shaded area is within the circle, and the inequality with ">" for the second circle ensures that the shaded area is outside the circle.

What is cos(tan^-1(-2/3))=

Answers

cos(tan^(-1)(-2/3)) simplifies to 3√13 / 13.

To evaluate the expression cos(tan^(-1)(-2/3)), we can use the trigonometric identity:

cos(tan^(-1)(x)) = 1 / √(1 + x^2)

In this case, x is -2/3. Substituting the value into the identity:

cos(tan^(-1)(-2/3)) = 1 / √(1 + (-2/3)^2)

Now, let's calculate the value:

cos(tan^(-1)(-2/3)) = 1 / √(1 + 4/9)

                   = 1 / √(13/9)

                   = 1 / (√13/3)

                   = 3 / √13

                   = 3√13 / 13

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Graph the linear function whose equation is y-2=-(x+1) by following these steps:
y
X
y
4
Step 1: Identify the slope.
slope = =

Answers

Answer:

slope == -1

Step-by-step explanation:

y-2 = -(x+1)

; y-2 = -x-1 expanding the bracket

; y = -x-1+2

; y = 1-x

hence slope equals -1

what type of data would best be displayed in a box plot

Answers

Answer:(2x+7)+(2x+7)

Step-by-step explanation:

what you do is put 2x on the top and on the side and then seven on the top and on the side and then you got your answer

translation- moving on the coordinate plane?

translation- moving on the coordinate plane?

Answers

Answer:

Step-by-step explanation:

this is hard maybe ask your mom

what is -9.25 as a faction

Answers

Answer:

-37 / 4

Step-by-step explanation:

A fair six-sided die is rolled 72 times. Theoretically, about how many times should a roll of "4" occur?
OA. There is no way to tell.
OB. 12
OC. 4
OD.
17
pls help:)

Answers

Answer:

OB. 12

Step-by-step explanation:

Since the die is a fair six-sided die and the question uses should... we know that a roll of "4" has a 1/6 chance to land every time the die is rolled.

1. 72 rolls * 1/6 chance to roll a 4 = 12 times

What is the equation of the line that passes through the point (-3, 7) and has a slope of -5/3?

Answers

The equation of the line that passes through the point (-3, 7) and has a slope of -5/3 is y - 7 = (-5/3)(x + 3).

We are given the point (-3, 7) and the slope of the line as -5/3.The slope-intercept form of a line is y = mx + b where m is the slope and b is the y-intercept.

To obtain the equation of the line, we need to substitute the values of slope and point in the slope-intercept form and solve for b.(7) = (-5/3)(-3) + b 21/3 = b.

Now we have the value of b, and we can substitute the values of m and b in the slope-intercept form.y = (-5/3)x + 21/3 is the equation of the line in slope-intercept form.

To obtain the equation in the standard form Ax + By = C, we multiply each term by 3.3y = -5x + 7Add 5x to both sides5x + 3y = 7.

This is the equation of the line in standard form.

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Please help me !!! I need help asap

Please help me !!! I need help asap

Answers

After calculating The perimeter of rectangle is 46.52 in the given rectangle.

What is area of rectangle?

area of rectangle can be defined as the product of length and breadth.

Given ,

A rectangle has a length 20 5 /6 and

breadth = 2 3/7

The perimeter of rectangle  = 2 (l+b)

length = (120 + 5 ) / 6 = 125/ 6

breadth = (14+3) / 7  = 17/7

perimeter  = 2 (125/6 + 17/7 )

= 2 ( (125*7 + 17 * 6) / 42 )

= 2 (875+102) / 42

= 2 * 23.26

= 46.52

Hence, after calculating The perimeter of rectangle is 46.52 in the given rectangle.

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True or false if a quadrilateral is a rhombus then it is a parallelogram

Answers

Answer:

I'm pretty sure that's true.

this is the question ​

Answers

Answer:

cool question I love it

Answer:

where?

Step-by-step explanation:

please help please...

please help please...

Answers

The required coordinate of B' is B' = (4, -5), across the y-axis after reflection. Option A is correct.

What is the transformation of geometry over the coordinate plane?

Transform the shapes on a coordinate plane by rotating, reflecting, or translating them.

here,
Given that a point B (-4, -5) is reflected across the y-axis, the Coordinate of image B' is to be determined.

Since the coordinate is reflected across the y-axis,
The equation of trasformation is given as,
(x , y) ⇒ (-x , y)

So, the image of B,

B' = (-(-4), -5)

B' = (4, -5)

Thus, the required coordinate of B' is B' = (4, -5), across the y-axis after reflection. Option A is correct.

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Please help I’ll upvote your work

Please help Ill upvote your work

Answers

Functions, f[g(1)] = 0.5 and g(g(1)) = g(-7) by using the details of question.

What are the Functions?

Given that the graphs of y = f(x) and y = g(x) intersect at (-2.5, 0.5), we know that f(-2.5) = g(-2.5) = 0.5.

To find g(1), we can use the equation of the line passing through the points (-3, 3) and (-2.5, 0.5). The slope of this line is:

m = (0.5 - 3) / (-2.5 + 3) = -2.5

So the equation of the line is:

y - 3 = -2.5(x + 3)

Simplifying this equation, we get:

y = -2.5x - 4.5

Therefore, g(1) = -2.5(1) - 4.5 = -7.

To find f[g(1)], we need to evaluate f(x) at x = g(1). Since we don't have an equation for f(x), we need to use the fact that the graphs of f(x) and g(x) intersect at (-2.5, 0.5). This means that:

f(g(1)) = f(-7) = 0.5

Therefore, f[g(1)] = 0.5.

Finally, to find g[g(1)], we need to evaluate g(x) at x = g(1). Since we know that g(1) = -7, we can write:

g(g(1)) = g(-7)

We don't know the equation of the function g(x), so we can't determine g(-7) without additional information.

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Complete question is: f[g(1)] = 0.5 and g(g(1)) = g(-7)

used to parallel lines cut by transversal below to answer the question. which statement is not a true statement will mark brainest ​

used to parallel lines cut by transversal below to answer the question. which statement is not a true

Answers

Answer:

B

Step-by-step explanation:

there is no angle e unless i am reading this incorrectly, but i double-checked all the other answer choices and they are all correct, so B is the answer:)

Answer:

see attached

Step-by-step explanation:

used to parallel lines cut by transversal below to answer the question. which statement is not a true
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