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OLEGan [10]
3 years ago
6

A circle has radius 50 cm. Which of these is closest to its area?

Mathematics
2 answers:
Angelina_Jolie [31]3 years ago
8 0

Answer:

7854 square centimeters

Step-by-step explanation:

The area of a circle is given by

A = pi r^2

A = pi ( 50)^2

A = 2500 pi

Let pi be approximated by 3.14

A = 2500 * 3.14

A =7850 cm^2

Crazy boy [7]3 years ago
4 0

Answer:

7854 square centimeters

Step-by-step explanation:

A=π · r^2 = π · 502 = 7853.98163

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John is selling tickets to an event. Attendees can either buy a general admission ticket, x,
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John sold 18 general admission tickets and 11 VIP tickets.

Step-by-step explanation:

Given,

Cost of each general admission = $50

Cost of each VIP ticket = $55

Total tickets sold = 29

Total revenue generated = $1505

Let,

x represent the number of general admission tickets sold

y represent the number of VIP tickets.

x+y=29     Eqn 1

50x+55y=1505   Eqn 2

Multiplying Eqn 1 by 50

50(x+y=29)\\50x+50y=1450\ \ \ Eqn\ 3

Subtracting Eqn 3 from Eqn 2

(50x+55y)-(50x+50y)=1505-1450\\50x+55y-50x-50y=55\\5y=55

Dividing both sides by 5

\frac{5y}{5}=\frac{55}{5}\\y=11

Putting y=11 in Eqn 1

x+11=29\\x=19-11\\x=18

John sold 18 general admission tickets and 11 VIP tickets.

Keywords: linear equation, elimination method

Learn more about elimination method at:

  • brainly.com/question/1232765
  • brainly.com/question/1234767

#LearnwithBrainly

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3 years ago
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Step-by-step explanation:

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Step-by-step explanation

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Answer:

  False

Step-by-step explanation:

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The order of magnitude of the US population is about 8.5, not 4.

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