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]
3 years ago
15

using 3.14 for pi what is the circumference of a circle with a radius of 6cm, show ur work PLEASE /using 3.14 for pi what is the

circumference of a circle a diameter of 9cm
Mathematics
2 answers:
Illusion [34]3 years ago
6 0
PT 1
the circumference of a circle is always pi times the diameter. The diameter is 2 times the radius, because diameter is all the way across the circle, whereas radius is from the center of the circle to the edge. Anyways, if the radius is 6, multiply it by 2 and you get 12, so 3.14 times 12 is 37.68, which is the answer.
PT 2
diameter=9 cm. So, just do 9 times 3.14. (diameter times pi = circumference.)
(2*radius times pi = circumference.)
9 times 3.14 is 28.26
:3
Anastasy [175]3 years ago
6 0
I like to remember the formulas with something called, "Cherry Pies Delicious, Apple Pi(e)s Are Too."

Cherry = Circumference
P = Pi
D = Diameter
A = Area
P = Pi
Are = Radius
Too = 2 = (squared)

So that makes the formulas :
Circumference = \pi × diameter
Area = \pi × radius²

1. And now we're looking for the circumference. For the first once. we have to find the diameter to find the circumference, but only the radius is given. The radius is half of the diameter, so we multiply it by 2 to find the diameter. That makes the diameter 12. We multiply \pi (we're using 3.14) and multiply it with 12, and we get : 37.68 cm

2. We have the diameter this time, so we don't have to find anything. We multiply the diameter (9) with pi (we're using 3.14) and we get : 28.26 cm
You might be interested in
a bag contains five green gumdrops and six red gumdrops. if kim pulls a green gumdrop out of the bag and eats it, what is the pr
joja [24]
Remaining gumdrops = 4 green and 6 red = 10 gumdrops
Required probability = 6/10 = 3/5.
3 0
3 years ago
In the expression 710 , which number is the exponent?
DiKsa [7]

Answer:

A.10

Step-by-step explanation:

An exponent is a number or letter written above and to the right of a mathematical expression called the base.

x is the base and n is the exponent or power. Definition: If x is a positive number and n is its exponent, then xn means x is multiplied by itself n times.

6 0
2 years ago
Read 2 more answers
3. Factor.
sleet_krkn [62]
It seems that some the work is already here, but I'd be glad to!! So for #3 which is 9x^2+15x, we can factor out both a 3 and an x (3x) so we know that 3x * 3x =9x^2 and 3x * 5 = 15x so once we take the 3x out of the equation, we are left with 3x(3x+5) and that's as far as you can factor.
For #4, we see that the common factor is 10m because 10m * 2n = 20mn and 10m * 3 = 30m so once we take 10m out of the original, it becomes 10m(2n-3)
For #5, this one the common factor is 4xy because 4xy * 2xy=8x^2y^2 and 4xy*x= 4x^2y and 4xy*3=12xy so once we take the 4xy out of the equation, it becomes 4xy(2xy-x-3)
Hope this helps!
5 0
3 years ago
What is the simplest form of 10 radical 2?
dezoksy [38]

Answer:

The 2nd root of 10, or 10 radical 2, or the square root of 10 is written as 2√10=√10=±3.162278.

Step-by-step explanation:

6 0
2 years ago
In his science class, Boris conducted an experiment in which he used a glass prism to make a rainbow. He now wants to find the s
Norma-Jean [14]

Answer:

<u>Use the formula for area of the triangle:</u>

  • A = 1/2bh, where b- base, h- height or altitude
<h3>Part A</h3>

<u>The triangle i has:</u>

  • b = 4 cm, h = 1.5 cm

<u>The area is:</u>

  • A = 1/2*4*1.5 = 3 cm²
<h3>Part B</h3>

Triangles have same area as they are congruent.

<u>Total area is:</u>

  • 3*2 = 6 cm²
4 0
2 years ago
Other questions:
  • Geometry Help!<br><br> I've attached the image I need help with!
    9·1 answer
  • Steve subscribed to 10 podcasts for a total of 340 minutes. He used his two favorite tags, Hobbies &amp; Recreation and Soliloqu
    14·1 answer
  • what is the solution to the system of equations? y = –3x 6 y = 9 a.(–21, 9) b.(9, –21) c.(–1, 9) d.(9, –1)
    7·1 answer
  • Find the number that should be added to the expression to make it a perfect square. k^2-5k
    7·1 answer
  • 1) A group of five friends goes to the state fair. Each friend pays the entrance fee and buys
    15·1 answer
  • Write the word 2.51 in word form and expanded form
    11·2 answers
  • The number “Pi” (∏) is often rounded to what number?
    10·2 answers
  • Help me please I’m having trouble with these equations
    13·1 answer
  • Can someone please help me answer this question asap thank you
    5·1 answer
  • Abdul uses 2 cups of milk to make a chocolate pudding cake. How many of these cakes can
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!