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
sasho [114]
2 years ago
9

Find the circumference of the circle. ​ ​Use as an approximation for .

Mathematics
2 answers:
Dmitry_Shevchenko [17]2 years ago
6 0

Answer:

Diameter of the circle=21 cm

Radius of the circle=21/2 cm

Circumference of the circle is 2×π×(radius)

Circumference=2×22/7×21/2= <u>66 cm</u>

<u>66 cm</u> is the right answer.

attashe74 [19]2 years ago
5 0

21piecm

hope it's helpful ❤❤❤❤

THANK YOU

You might be interested in
If the car spends no time going 35 miles per hour, about how long would the trip take? Round the answer to the nearest hundredth
GrogVix [38]
What’s the car ride hour
7 0
3 years ago
Need by TONIGHT please help
igor_vitrenko [27]
Slope = 1/2 :) 
rise over run (rise/run)
so... 2/4 = 1/2 
hope this helps!
7 0
3 years ago
5+3r=5r-19(if there is no solution,type in ''no solution'')r= Answer
TEA [102]

Answer: 12 = r

Step-by-step explanation: When we have this kind of a setup, we want to put our variables together on one side of the equation and our numbers together on the other side of the equation.

First, let's put our variables on the right side by subtracting 3r from both sides of the equation. That gives us 5 = 2r - 19.

Now we can move our numbers to the left by adding 19 to both sides of the equation and we get 24 = 2r.

Divide both sides by 2 and 12 = r

Note:

Don't just do this problem in your head. It's extremely important to develop the habit of putting all your steps down on paper or digitally. It will really pay off for you down the line.

4 0
3 years ago
Write the complex number in trigonometric form a+bi. 3(cos270+I sin 270)
Darya [45]
Simply get the value of the angle and distribute away.

\bf 3[cos(270^o)+i~sin(270^o)\implies 3[0+i( -1)]\implies 3-3i
4 0
3 years ago
A triangle has side lengths of 10, 20, and 30. what type of triangle is it
Alexeev081 [22]
Right triangle bc a^2+b^2=c^2. (Pythagorean theorem)
4 0
2 years ago
Other questions:
  • Select all that apply
    9·1 answer
  • What’s 3 5/8 as a fraction
    6·1 answer
  • Pleaseeeee helpppppp me!!! ill mark you as my brainist HELLOOOOOOO?????
    11·1 answer
  • The value of a new car purchased for $24,950 decreases each year by 12%. How much will the car be worth in 7 years?
    10·1 answer
  • Question 4: The storage in a reach of a river at a point in time is 255 m3 (meters cubed) . Determine the average rate of inflow
    6·1 answer
  • How does the graph below change between point A and point B
    7·2 answers
  • A fast food restaurant just leased a new freezer and food fryer for three years. The service contract for the freezer offers unl
    6·1 answer
  • Make the most childish answer possible and ill give you brainliest
    14·2 answers
  • 30 exceeds three times a number by 89 what is the number
    13·1 answer
  • (PLEASE HELP) The picture explains everything.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!