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
statuscvo [17]
3 years ago
14

Calculate the area of a circle with the radius of 2cm. Pie=3

Mathematics
2 answers:
musickatia [10]3 years ago
7 0

Answer:

12.56 cm

Step-by-step explanation:

Area of a circle is A=3.14 r to the second power.

so the radius is 2 cm. I would do 2 x 2 and that equals ,4 next 4 x 3.14= 12.56

i don't know what pie=3 means but this is my answer from the best of my ability.

Fofino [41]3 years ago
6 0

Answer:

12

Step-by-step explanation:

The formula to find the area of a circle is:

\pir^{2}

Where "r" is the radius of the circle.

In this case, the radius is 2, and as per what is given in this problem (what the problem asks one to use), pi is rounded down to 3.

The equation will be:

3 * 2^2

Simplify, remember the order of operations:

3 * 4

12

You might be interested in
Match the following items by evaluating the expression for x = -7. x-2 x-1 x0 x1 x2
frosja888 [35]

Answer:

{x}^{ - 2}  =  \frac{1}{ {x}^{2} }  \:  \: –> {7}^{ - 2}  =  \frac{1}{ {7}^{2} }  =  \frac{ 1}{49}  \\  \\  {x}^{ - 1}  =  \frac{1}{ {x}^{1} }   \: –>  {7}^{ - 1}  =  \frac{1}{ {7}^{1} } =  \frac{1}{7}  \\  \\  {x}^{0} –> {7}^{0}   = 1 \\  \\  {x}^{1}  –> {7}^{1}  = 7 \\  \\  {x}^{2}  –> {7}^{2}  = 49

7 0
2 years ago
Giving BRAINLEST PLEASE I NEEDA PAST MATH!
Kisachek [45]

Answer:

Step-by-step explanation:

= - 7

Upgrade to Premium

4 0
2 years ago
Read 2 more answers
En una sala de teatro havian 7 filas 23 sillas cada una acaban de quitar 8 de las sillas ¿cuantas sillas quedan?
LenaWriter [7]

Answer:

Quedan 153 sillas

Step-by-step explanation:

Primero sabemos que en una sala de teatro tenían 7 filas, y en cada una de esas filas habían 23 sillas.

Entonces, originalmente, el número total de sillas es 7 veces 23:

S = 7*23 = 161

Luego sabemos que quitan 8 de esas sillas, entonces el número de sillas que quedan es la diferencia entre el número original de sillas, 161, y 8, que nos da:

S = 161 - 8 = 153

Quedan 153 sillas

6 0
2 years ago
(15)Simplify the expression below. Show your work -(-7y+12)
kotykmax [81]
15. -(-7y + 12) = 7y - 12

16. 1/a = 16/18
      cross multiply
      16a = 18
      a = 18/16 = 9/8

17. 8x - 12 = 4x + 24
      8x - 4x = 24 + 12
      4x = 36
      x = 36/4
      x = 9

18. -6b > 42           4b > -4
       b < 42/-6          b > -4/4
       b < - 7              b > -1
so b < -7 and b > -1

19. 6 more then the product of 8 and n
      6 + 8n

20. 45 = 3b + 69
      45 - 69 = 3b
      -24 = 3b
      -24/3 = b
      -8 = b
6 0
3 years ago
Read 2 more answers
one gallon of milk costs 3.60, but this cost is projected to increase 10% in the next 5 years. what is the projected cost of a g
Tju [1.3M]

3.60$ x (100%+10%)

=3.60$ x 110%

=3.60$ x 1.1

=3.96$ for a gallon of milk 5 years from now.

4 0
3 years ago
Other questions:
  • Evaluate the expression -5x+2.5x+4.5-x+3 when x=3
    9·1 answer
  • Find the distance between each pair of points. Round your answer to the nearest tenth, if necessary.
    9·1 answer
  • Please help ASAP!!!!! will mark you brainliest thank you!
    11·2 answers
  • Can someone help me plz on this. I don't understand ​
    12·1 answer
  • Ayesha wanted her friend to draw a shape. Ayesha said at least one pair of opposite sides must be parallel. Which of the followi
    9·2 answers
  • Pls help number 7<br> I need helpll
    15·1 answer
  • A recording studio charges musicians an initial fee of $50 to record an album. Studio time costs an additional $75 per hour. Wri
    8·1 answer
  • Brainly? I’ll give it !
    5·2 answers
  • A is the poin 3,5 and b is the point 0,k if the distance of ab is 5 units find the possible value of k
    12·1 answer
  • Use the quadratic formula to find the exact roots of –5x^2 + 8x – 3 = 0. Express your answers as exact roots. Show all steps.
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!