The circumference of a circle is 19π m. What is the area, in square meters? Express your answer in terms of \piπ.

Answers

Answer 1

Answer:

90.25π

Step-by-step explanation:

The circumference of circle is 2πr, or in other words the diameter times π.

The area of a circle is πr^2.

19π is the circumference of this circle.

So, 19 is the diameter, and 9.5 the radius.

The area if (9.5^2)π.

9.5^2=90.25

So, in terms of π, the area of the circle is 90.25π.


Related Questions

can someone help me with this question please​

Answers

Answer:

-5/4

Step-by-step explanation:

A(0,-1)

B(-4,4)

[tex] \frac{4 + 5}{ - 4 - 0} = - \frac{5}{4} [/tex]

Resolva:
12,548:9
62,547÷7
5,127÷25

Answers

12,548:9( you can’t simplify this ratio)
62,547 divided by 7 = 8,935.28571
5127 divided by 25 = 205.08

#2. Write the slope-intercept equation of the
line shown.

Answers

Answer:

y = 1/2 x -2

Step-by-step explanatio

well you grab 2 points: (2,-1) and (-2,-3) and find the dif: gives 4/2 or 2, sub this into the equation as wel as the y intercept which is -2

this will give
y=2x-2

factor by grouping
3n^3 - 12n^2 + 2n - 8
(show the work pls..)

Answers

Answer:

The answer will be ( n - 4 ) ( 3n² + 2 ).

Step-by-step explanation:

1) Factor out common terms in the first two terms, then in the last two terms.

[tex] {3n}^{2} (n - 4) + 2(n - 4)[/tex]

2) Factor out the common term n - 4.

[tex](n - 4)( {3n}^{2} + 2)[/tex]

Therefor, the answer is ( n - 4 ) ( 3n² + 2 ).

PLEASE HELP! 15 POINTS! whats the value of b?

Answers

Answer:

66.6

Step-by-step explanation:

180-113.4=66.6

Answer:

66.6

Step-by-step explanation:

180-113.4=66.6

A bird flies south. Its distance from its nest, as a function of time, is modeled by y = 20x + 1. Which statement best describes the function? A. Not enough information is given to decide. B. The function is linear at some points and nonlinear at other points. C. The function is linear. D. The function is nonlinear. SUBMIT​

Answers

Answer:

Thee  function  is    linear.

Step-by-step explanation:

Answer:

So it becomes a linear equation.

Step-by-step explanation:

write an equation of the line that passes through (0 0) and (2 6)

Answers

Answer:

y = 3x

Step-by-step explanation:

Slope equation:

y2 - y1

--------

x2 - x1

----------------------------------------------------------------------------------------------------------------

         6 - 0          6

m = ----------- =   ----- = 3

         2 - 0           2

Your slope is 3.

----------------------------------------------------------------------------------------------------------------

Equation:

y = mx + b

Plug in the slope and you get:

y = 3x + b

----------------------------------------------------------------------------------------------------------------

Now to find b, you can use either coordinate point. So I will show you both ways :)

(0,0)                                                                     (2,6)

0 = 3(0) + b                                                     6 = 3(2) + b

Multiply 0 and 3                                           Multiply 2 and 3

0 = 0 + b                                                         6 = 6 + b

Subtract 0 to 0                                            Subtract 6 from 6

0 = b                                                                    0 = b

There is no y-intercept

----------------------------------------------------------------------------------------------------------------

Your answer: y = 3x

Hope this helped :)

Filipe is buying materials for making his new comic books. He purchases a notebook for $7
and when he rings up it shows he also owes $0.42 in tax. If he buys markers the next day for
$6 and pays the same tax rate, how much will he pay in tax?

Answers

Answer:$0.36

Step-by-step explanation:

0.42 devided by 7= 0.06

0.06 times 6= 0.36

Answer:

He would pay $0.36 the next day if he buys markers and pays the same tax rate as day 1.

Step-by-step explanation:

The solution is in the image and the answer is 1a and 1b the question 2 answer isn't relevant to you.

find volume of sqaure pyramid​

Answers

Answer:

volume of a pyramid is base area x height

base is a square

Area of a square is L²

L²=5²

L²=25cm²

Height is 5cm

vol of a pyramid =25cm²x5cm

=75cm³.

The height is cm5 that is your answer

Please help I’ll give brainliest if it’s correct !! :)))

Answers

Answer:

A textbook weighs about 1 pound and is about 1 foot long

A car weighs about 1 ton and is about 5 yards long

A mosquito weighs about 2 mg and is about 1 inch long

Step-by-step explanation:

#commonsense lol

Please help me! Anything is appreciated!

Answers

B,D,G,H are right angles

Which angle is congruent to ∠8? Select all that apply.
A. ∠1
B. ∠2
C. ∠3
D. ∠4

Answers

Answer:

Angle 1,Angle 4

Step-by-step explanation:

They're

The value of angle ∠1 and angle ∠4 will be congruent with angle ∠8. The correct options are D.

What are lines and angles?

Lines are straight with little depth or width. Perpendicular lines, intersecting lines, transversal lines, and other types of lines will be covered. An angle is a shape formed by two rays emerging from a common point. In this field, you may also come across alternate and corresponding angles.

Given that there are two lines e and f cut by the transversal line g making different angles.

From the property of the alternate interior angles the two angles, 1 and 4 are congruent to angle 8. The value is mathematically written as,

∠1 = ∠4 = ∠8

Therefore, the value of angle ∠1 and angle ∠4 will be congruent with angle ∠8. The correct options are D.

To know more about lines and angles follow

https://brainly.com/question/25716982

#SPJ2

Someone plz help but instead of sending a link because I can’t open then can you please just tell me, thanks!

Answers

Answer:

Options A and C and F are correct.

Step-by-step explanation:

5(2+4)

5*2+5*4

5*6

Have a great day! :)

and can I please have brainliest?

Thanks!

Answer: Your answers would be 5(2+4), 5x2+5x4, and 5x6

Hope this helps you!

can someone help with this i don't get it ​

Answers

Answer:

Lord have mercy thats a bunch of numbers I woud help but i dont know how to start

Step-by-step explanation:

Sarah spent $25 at the craft store. She bought one book for $4 and 7 paint brushes for X dollars. Write an equation to describe this situation.

Answers

25=7x+4
25 spent total, $4 is given and for 1, and she bought 7 books for x dollars, so you do 7x

Write the fraction 3248 in simplest form.

Answers

Answer:

Step-by-step explanation:

ok so im not sure what the fraction is.... so i'll put all the choices

3/248= simplified

32/48= 2/3

324/8= 81/2

3248/1= 3248


For every 3 tickets you sell your friend sells 4. You sell a total of 12 tickets. How many does your friend sell? Complete
problem
You
3
9
12
Friend
4
8
Your friend sells tickets

Answers

Answer:

16

Step-by-step explanation:

If 3 x 4 = 12 then you need to do the same to the number 4 so 4 x 4 =16

Answer:

3 : 4 :: 12 : x proportion 3x = 48 product means/extremes Can you solve for x and answer?

(If not look below.)

Step-by-step explanation:

ratio: 3:4

so divide 12 by 3=4

and multiply 4 by 4=16

your friend sells 16 tickets

ratio is now 12:16

4 : 3 = 12 : x

x = 12 * 4  / 3  = 16

A washer and a dryer cost $928 combined. The washer costs $78 more than the dryer. What is the cost of the dryer?

Answers

Answer:

Step-by-step explanation:

$425

Sally has a discount card that reduces the price of her grocery bill in a certain grocery store by 6%. If c represents the cost of Sally’s groceries, which expression represents Sally’s grocery bill?

Answers

Answer:

Step-by-step explanation:

c - 0.06c = 0.94c

total bill = 0.94c

Which value of x is a solution to this equation? 5x^2-36x+36
A. -6
B. 4
C. -1.8
D. 1.2​

Answers

Answer:

D) 1.2

Step-by-step explanation:

can i get some help!!!

Answers

Answer:

i plus mo lng po iyan halimabawa yung number 7.4+8=12 po

Step-by-step explanation:

sana makatulong

Starting at 6:00 a.m., Lin spent a day hiking through a canyon. This graph shows her elevation (in meters) at some different times. Negative values of x represent times earlier than noon, and positive values of x represent times later than noon.
Please help me with this

Answers

Answer:

First, we know that the 0 in the horizontal axis corresponds to the noon.

Then:

a) Lin's elevation at noon in meters.

We need to see the elevation when x = 0.

This is the point that is just on top of the y-axis, we can see that when x = 0, we have y = 6.

Then at noon, her altitude was 6 meters.

b) At 8:00 am, her elevation was 2m

Remember that the x-component represents time, and x = 0 represents the noon.

8:00 am is 4 hours before noon, then 8:00am is represented with x = -4

and at this time her elevation is 2m, then y = 2.

This means that the point that represents this is (-4, 2)

c) At 4:00 pm Lin was at sea level (her elevation was 0m)

Same reasoning than before: x = 0 is the noon, then 4:00 pm is four hours after this, then 4:00 pm is represented with x = 4.

And here her altitude is 0m, then y = 0.

This point is written as (4, 0)

d) Here we can see that at 6:00 am her elevation was negative, and at 4:00pm her elevation is 0.

And we know that:

0 > negative numbers.

Then her altitude increased in this interval of time.

Answer:

Its 0

Step-by-step explanation:

Marcello is investigating plant growth. The flowers he planted in his garden were expected to grow two inches in one year. This year there was more rainfall, so the flowers grew three inches. What percentage more did the flowers grow than was expected?
25%
50%
75%
100%

Answers

Answer:

50%

Step-by-step explanation:

it was predicted to grow 2 inches and that would be 100% each inch is 50% it grew one inch more than predicted so it grew 50% more

helpppppppp fassstttttttt​

Answers

Answer:

133

Step-by-step explanation:

1/2 = 1/a + b/c make b the subject​

Answers

Answer:

b = [tex]\frac{ac-2c}{2a}[/tex]

Step-by-step explanation:

Given

[tex]\frac{1}{2}[/tex] = [tex]\frac{1}{a}[/tex] + [tex]\frac{b}{c}[/tex]

Multiply through by 2ac to clear the fractions

ac = 2c + 2ab ( subtract 2c from both sides )

ac- 2c = 2ab ( divide both sides by 2a )

[tex]\frac{ac-2c}{2a}[/tex] = b

is anyone else trying to get help but random accounts don’t stop posting links?

Answers

Actually yeah. It’s really annoying

Maybe this bobcat will make your day better

Answer:

I haven't asked any questions but i keep seeing the link. and its all the same one...

Please please help help me please please ASAP ASAP please ASAP thank you

Answers

Did this wrong sorry I thought it was greatest to least.

Answer:

-6, -1, 0, 4, 15

Step-by-step explanation:

the higher the negative number is, the smaller it is. its like being in debt

Question 10 (45 points)
Which pair of triangles is congruent by ASA?
OL
th

Answers

The only thing I know is the person that answered side angle

Factorise fully
8 + 49

Answers

Answer: 8 + 49 factored is 57

I hope this helps you

Answer:

57

Step-by-step explanation:

8

+ 49

57

pleaseeee i need help ASAP!!!

Answers

Answer:

3734.95

Step-by-step explanation:

Pi = 3.14 to find the radius of a circle we multiply the circumference and Pi. Then square it. So, 34.48x3.14 = 108.2672 then 108.2672² = 3734.94651 which rounds to 3734.95

The answer is : 3734.95 in.
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