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grin007 [14]
3 years ago
14

Find the area of the semicircle.

Mathematics
1 answer:
Oksana_A [137]3 years ago
8 0

Answer:

the area of the semicircle is 4.5π

Step-by-step explanation:

Step 1: Find the radius

Radius = Diameter divided by 2 =6/2=3

Step 2: Find the area of the full circle

                             =π3 to the power 2

                             =9π

Step 3: Find the area of 1/2 of the circle.

9/2π = 4.5π

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</span>greatest common factor: x^3y^2
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Kaitlin, Tony, and Austin sent a total of 103 text messages over their cell phones during the weekend. Austin sent 4 times as ma
emmainna [20.7K]

The number of messages Kaitlyn, Tony and Austin sent are 13, 18 and 72 messages respectively.

<h3>How to write and solve equation?</h3>

let

  • Number of messages Kaitlyn sent = x
  • Number of messages Tony sent = x + 5
  • Number of messages Austin sent = 4(x + 5)
  • Total messages = 103

103 = x + (x + 5) + 4(x + 5)

103 = x + x + 5 + 4x + 20

103 = 6x + 25

103 - 25 = 6x

78 = 6x

x = 78/6

x = 13

Number of messages each sent:

Number of messages Kaitlyn sent = x

= 13 messages

Number of messages Tony sent = x + 5

= 13 + 5

= 18 messages

Number of messages Austin sent = 4(x + 5)

= 4(13 + 5)

= 4(18)

= 72 messages

Learn more about equation:

brainly.com/question/2972832

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