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
Nutka1998 [239]
3 years ago
15

The circle diameter is 3cm what is the circumference?

Mathematics
2 answers:
Paul [167]3 years ago
7 0

Step-by-step explanation:

<em>Given </em>

<em>diameter </em><em>(</em><em>d) </em><em> </em><em>=</em><em> </em><em>3</em><em> </em><em>cm</em>

<em>π</em><em> </em><em>=</em><em> </em><em>3</em><em>.</em><em>1</em><em>4</em><em> </em>

<em>Now</em>

<em>Circumference </em>

<em>=</em><em> </em><em>π</em><em> </em><em>d</em>

<em>=</em><em> </em><em>3</em><em>.</em><em>1</em><em>4</em><em> </em><em>*</em><em> </em><em>3</em><em> </em>

<em>=</em><em> </em><em>9</em><em>.</em><em>4</em><em>2</em><em> </em><em>cm</em>

wel3 years ago
7 0

Answer:

the anwser would be 3 X 3.14

Step-by-step explanation:

You might be interested in
I NEED HELP PLEASE, THANKS! :)
cluponka [151]

Answer:

standard deck has 52 cards. probability of king is 4/52 and probability of a queen is 4/52, so 4/52 + 4/52 = 8/52=2/13

Step-by-step explanation:

3 0
4 years ago
A circle has a radius of 9 inches. The Radius is multiplied by 2/3 to form a second circle. How is the ratio of the areas relate
liraira [26]

Answer:

\frac {(Area\ of\ first\ circle) }{(Area\ of\ second\ circle)} = \frac{81}{36} = (\frac{r_{1} }{r_{2}}) ^{2}

The above expression shows that ratios of the areas of the circles are equal to the square of the ratio of their radii.

Step-by-step explanation:

Radius of first circle (r_{1}) = 9 inches

Area of first circle = \pi r_{1} ^{2}

Area of first circle = 9 × 9 × π = 81 π

Now, since the radius is multiplied by 2/3 for from a new circle.

∴ Radius of the second circle = 9 \times \frac{2}{3} = 6\ inches

Area of second circle =  \pi r_{2} ^{2}

Area of second circle = 6 × 6 × π = 36 π

Now,

\frac {(Area\ of\ first\ circle) }{(Area\ of\ second\ circle)} = \frac{81\pi }{36\pi }

\frac {(Area\ of\ first\ circle) }{(Area\ of\ second\ circle)} = \frac{81}{36} = (\frac{9}{6}) ^{2} = (\frac{r_{1} }{r_{2}}) ^{2}

∵ (r_{1}) = 9 inches and (r_{2}) = 6 inches

The above expression shows that ratios of the areas of the circles are equal to the square of the ratio of their radii. i.e., \frac {radius\ of\ first\ circle)^{2} }{(radius\ of\ second\ circle)^{2} } = \frac {(Area\ of\ first\ circle) }{(Area\ of\ second\ circle)}

8 0
3 years ago
Explain this if you can i struggle with Discrete and Continuous Data
Reika [66]

Answer:

option A

{1, 2, 4, 7, 9}

Step-by-step explanation:

The domain of a function is the complete set of possible values of the independent variable. Mostly it is 'x' values.

In the figure the tail of arrow represent values of domain and head of arrow represent values of range.

So,

{1, 2, 4, 7, 9} is the domain of G(x) and {3, 5, 8} is the range

8 0
3 years ago
Juan saved $1,000 from his summer job cleaning pools. Which of these savings vehicles would work best for him if he doesn't need
irina1246 [14]

Options:

  • Regular savings account
  • Money Market account
  • Checking Account
  • Certificate of Deposit

Answer:

Certificate of Deposit

Step-by-step explanation:

Required

Which of the given options has the highest interest rate

To do this, we have to list out the interest rates of each of the given accounts:

  • A regular savings account has the least interest rate which is around 0.04% APY.
  • The interest rate on money market account is between 0.30% and 0.50% APY.
  • The interest rate on checking account is between 0.06% and 0.09% APY.
  • The interest rate on Certificate of Deposit is between 0.55% and 0.80% APY.

So, by comparison:

<em>Juan will earn more if he uses Certificate of Deposit</em>

7 0
3 years ago
Solve by substitution
Mademuasel [1]

Answer:

That is way too much math for me.

Step-by-step explanation:

4 0
4 years ago
Other questions:
  • Find the cubic unit make sure to put cubic units after your answer
    10·1 answer
  • At the market, Ms. Winn bought 3/4 lb of grapes and 5/8 lb of cherries. How many ounces of grapes did Ms. Winn buy?
    11·2 answers
  • Give two square roots are used to estimate square root of 8
    14·1 answer
  • The sum of three consecutive odd integers is -315 find three integers
    13·1 answer
  • tickets numbered 1 to 20 are mixed up and then a ticket is drawn at random what is the probability that the ticket drawn has a n
    8·1 answer
  • theree students are solving the following equation Abby said there is no one solution Julia sis’s there is no solution and Justi
    12·1 answer
  • What is the degree of the following polynomial? 9 - x ^ 2 + 2x ^ 5 - 7x
    12·1 answer
  • XYZ is a right triangle Angle z is a right angle, XZ=10 YZ= √60 What is XY
    8·1 answer
  • Plz hurry it’s due soon I’ll DO BRAINLEST !!!
    6·1 answer
  • A rectangle is 5 inches long and 7 inches wide.How many one-square-inch tiles are needed to cover its area?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!