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
Sedbober [7]
2 years ago
15

Find the area of a circle that has a radius of 9 mm. Use 3.14 for π.

Mathematics
2 answers:
melisa1 [442]2 years ago
7 0

Answer: 254,34 mm².

Step-by-step explanation:

S{circle}=\pi R^2\\S{circle}=3,14*9^2\\S{circle}=3,14*81\\S{circle}=254,34\  mm^2.

kramer2 years ago
7 0

Hi :)

Let's first find the area of this circle

<h2>—————————</h2>

For finding the area of a circle we use

\longrightarrow\sf{A_{\circ}=\pi r^2}, where only r (radius) is squared

\textit{We know that :}\begin{cases} \sf{Radius = 9 mm} \\ \sf{\pi =3.14} \end{cases}}

Thus

\longrightarrow\sf{A_{\circ}=3.14\cdot9^2}

\longrightarrow\sf{A_{\circ}=3.14\times81}

\longrightarrow\sf{\underline{A_{\circ}=254.34\: mm}}

\tt{Learn\:More;Work\;Harder}

<em>:)</em>

You might be interested in
I need to know how to do it aswell
4vir4ik [10]

Answer:

x= 3

Step-by-step explanation:

x on triangle 1 is 5 times less than 15

x on triangle 2 is 3 times bigger than 10

Hope this helps!

6 0
3 years ago
Read 2 more answers
Which of the following must be true?
IgorLugansk [536]

Answer:

A

Step-by-step explanation:

58=58

8 0
3 years ago
Allan paid $340 to have his car fixed at an auto-repair shop.
Gala2k [10]

Answer:

5 Hours

Step-by-step explanation:

340 = 215 + 25x

DO INVERSE OPERATIONS ~ MINUS BOTH SIDES OF THE = SIGN

340 - 215 = 125

215 - 215 = 0

125 = 25x

DIVIDE BOTH SIDE NOW

125 / 25 = 5

25x / 25 = 1 = x

<em>5 Hours</em>

3 0
3 years ago
Read 2 more answers
You have a bag that contains 20 quarters, 20 dimes, and 15 nickels. When randomly selecting two coins with no replacement find t
iogann1982 [59]

Answer:

P(2 quarters) = 19/ (13*16) = 19/208  = 0.0913

Step-by-step explanation:

probability of getting 2 quarters?

ok

first draw:  there are 20 quarters to choose from

second draw: there are 19 quarters left to choose

so Total coins are 65 coins

P(2 quarters) = P( 1st quarter)* P(2nd quarter)

P(2 quarters) =  20/65   *   (19/64)

P(2 quarters) = 4/13 *  19/64

P(2 quarters) = 19/ (13*16) = 19/208

4 0
3 years ago
Fre.e brainliest,<br><br> just name 3 types of monkeys
nekit [7.7K]

Answer:

Emperor tamarin, Mandrill, and Japanese macaque.

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Other questions:
  • Which expression is equivalent to 17s - 10 + 3(2s + 1)
    13·2 answers
  • .) A population of values has a normal distribution with μ=27.5 and σ=71.5. You intend to draw a random sample of size n=180.
    6·1 answer
  • PLEASE HELP
    7·1 answer
  • Find the x- and y-intercepts. Then graph the equation.<br> 1) 4y - 2x = -10
    12·2 answers
  • A box contains only black and white chips. There are 8 black chips and 6 white chips. How many white chips must be removed so th
    14·1 answer
  • A line that includes the point (-8,-3) has a slope of -1/9. What is it’s equation in point-slope form?
    9·1 answer
  • All the members of a construction crew work at the same pace. Four of them working together are able to pour concrete foundation
    14·1 answer
  • 17. The base of a parallelogram is 10 meters. The height is one fourth of the base. Find the area of the parallelogram.
    6·1 answer
  • Need some help not very good at fractions so i need some help
    10·1 answer
  • Which function corresponds to the graph below? help pleaseee!
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!