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
o-na [289]
3 years ago
11

Calculate the perimeter and area of a circle whose radius is 7cm(22/7

1" title="\pi" alt="\pi" align="absmiddle" class="latex-formula">
​
Mathematics
1 answer:
Grace [21]3 years ago
7 0

<u>Given</u><u> </u><u>:</u>

  • Radius, r = 7 cm

<u>To</u><u> </u><u>find</u><u> </u><u>out</u><u>:</u>

Find the perimeter ( circumference ) and area of the circle?

<u>Formula</u><u> </u><u>used</u><u>:</u>

  • Area of circle = πr²

  • Perimeter of circle = 2πr

<u>Solution</u><u>:</u>

<u>★</u> Area of circle = πr²

= 22/7 × 7²

= 22/7 × 49

= 22 × 7

= 154 cm²

★Perimeter of circle = 2πr

= 2 × 22/7 × 7

= 2 × 22

= 44 cm

You might be interested in
C = ?<br> when d = 25 m.<br> (C = circumference)<br> (d = diameter)
Lera25 [3.4K]

Answer:

12.5m

Step-by-step explanation:

I don't wanna type it lmco (laughing my cheeks off)

6 0
3 years ago
Help me please? tysvm!
Oksana_A [137]
There is 180 inches in every 5 yards and when you multiply that by 4 you will get 720 inches, hope this answers your question
7 0
3 years ago
Read 2 more answers
Giving brainliest Help please
Inga [223]

Answer: -11/12

I only know this because of a song my math teacher made. I don't have an explanation, good luck

4 0
3 years ago
Read 2 more answers
Which statement best describes the function below?
marta [7]
<h2>Answer:</h2>

A. It is a many-to-one function.

<h2>Step-by-step explanation:</h2>

Hello! It will be a pleasure to help to figure out what's the correct answer to this problem. First of all, we have the following function:

f(x) = 2x^3 + 2x^2-x

When plotting this function, we get the red graph of the function shown below. So let's solve this as follows:

<h3>A. It is a many-to-one function.</h3>

True

A function is said to be many-to-one there are values of the dependent variable (y-values) that corresponds to more than one value of the independent variable (x-values). To test this, we need to use the Horizontal Line Test. So let's take the horizontal line y=0.5, and you can see from the first figure below that y=0.5 is mapped onto x=-1.241 \ x=-0.344 \ and \ x=0.585. so this is a many-to-one function.

<h3>B. It is a one-to-one function.</h3><h3>False</h3>

Since this is a many-to-one function, it can't be a one-to-one function.

<h3>C. It is not a function.</h3>

False

Indeed, this is a function

<h3>D. It fails the vertical line test.​</h3>

False

It passes the vertical line test because any vertical line can intersect the graph of the function at most once. An example of this is shown in the second figure below.

6 0
4 years ago
Another 10 points cause i messed up
Elan Coil [88]

Answer:

thank you? i guess...

Step-by-step explanation:

5 0
3 years ago
Other questions:
  • Imani’s rent increased from $560 per month to $600 per month. Her friend, Ariana, had her rent increase from $825 to 875. Who ha
    15·1 answer
  • Eve plays basketball. She makes 7 free throws for every 3 free throws that she misses. If she missed 24 free throws at her last
    10·2 answers
  • The graph of an equation with a negative discriminant always has which characteristic? no x-intercept no y-intercept no max no m
    7·2 answers
  • Which equation does the graph below represent?
    9·2 answers
  • The Venn diagram below represents the students in a particular high school.
    15·2 answers
  • What is the volume, in cubic centimeters, of the cylinder?
    10·1 answer
  • Smart people I need you i'll give brainlist to person who answers
    8·1 answer
  • Help....<br> 3c+8=14....<br> Thanks!! :)
    6·2 answers
  • 1/2 x 3 answer as a fraction​
    8·1 answer
  • What is the first four terms of the geometric sequence where a1=−8 and r=−2 ?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!