1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
DiKsa [7]
2 years ago
5

The area of a circle is 9π m². What is the circumference, in meters? Express answer in terms of π

Mathematics
1 answer:
ad-work [718]2 years ago
8 0

Answer:

20.25 pi

Step-by-step explanation:

The circumference of a circle is given by

C = 2 * pi *r

9 pi = 2 * pi *r

Divide each side by 2pi

9pi / 2 pi = 2 pi r / 2 pi

4.5 = r

Now we can find area

A = pi r^2

= pi ( 4.5)^2

20.25 pi

You might be interested in
What is the following sum?
marta [7]

Answer:

A)

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
So what is the answer to Which is larger? 3.6 km or 3,600 m
mina [271]

Answer:

the answer is 3.6km is bigger then 3,600 m

3 0
3 years ago
Quadratic equations and complex numbers PLEASE HELPPPP ASAP
kondor19780726 [428]

we are given

27x^3-1=0

we can also write it as

(3x)^3-(1)^3=0

now, we can use factor formula

a^3-b^3=(a-b)(a^2+ab+b^2)

we can use above formula

we get  

(3x)^3-(1)^3=(3x-1)((3x)^2+3x\times 1+(1)^2)

now, we can simplify it

27x^3-1=(3x-1)(9x^2+3x+1)

now, we can set it to 0

27x^3-1=(3x-1)(9x^2+3x+1)=0

and then we can solve for x

(3x-1)(9x^2+3x+1)=0

3x-1=0

x=\frac{1}{3}

9x^2+3x+1=0

now, we can use quadratic formula

x=\frac{-b\pm \sqrt{b^2-4ac}}{2a}

now, we can plug values

and we get

x=\frac{-3\pm \sqrt{3^2-4\cdot \:9\cdot \:1}}{2\cdot \:9}

x=-\frac{1}{6}+i\frac{\sqrt{3}}{6},\:x=-\frac{1}{6}-i\frac{\sqrt{3}}{6}

So, we will get solution as

x=\frac{1}{3},\:x=-\frac{1}{6}+i\frac{\sqrt{3}}{6},\:x=-\frac{1}{6}-i\frac{\sqrt{3}}{6}...............Answer

5 0
3 years ago
Find the missing side number 1 and 2. ​
Tamiku [17]

Answer:

Step-by-step explanation:

1 is 13.86 2 is 16

5 0
3 years ago
Use the grouping method to factor the polynomial below completely.<br> x3 + 2x + 5x + 10
In-s [12.5K]

Answer:

your answer to that is D hope that helps

4 0
3 years ago
Other questions:
  • Whats the sum of the exterior angles of a 35-gon
    7·1 answer
  • A thermometer is taken from a room where the temperature is 25oc25oc to the outdoors, where the temperature is 0oc0oc. after one
    7·1 answer
  • A rectangular field is 450 meters long and 300 meters wide. What is the area of the field in square kilometers?
    13·1 answer
  • What is the constant of proportionality
    15·1 answer
  • It is fall and time for joseph to harvest his farm. He currently has 120 acres of wheat. With the help of his farm equipment he
    8·1 answer
  • 30 points!
    13·2 answers
  • What is the greatest common factor of 56 and 72
    15·2 answers
  • Ouglas made 122 dollars by washing cars to buy holiday presents. He decided to spend m dollars on a present for his mom and then
    11·1 answer
  • The graph of the equation y=2x^2-2 is shown which equation will shift the graph up 3 units
    7·1 answer
  • Does (84,-7) has one, two or no solution?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!