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OverLord2011 [107]
3 years ago
9

Need help ASAP!!

Mathematics
1 answer:
mestny [16]3 years ago
4 0

j + a = 50

j= a + 12

a+ 12 +a = 50

2a +12 = 50-12

2a = 38

a = 19

j =31

a = 19

Jordan is 31 years old and Anna is 19 years old.


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The length of one side of the octagon is given by:
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 Clearing to have:
 a ^ 2 = 11.8 ^ 2 - (9/2) ^ 2
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 Then, the area is given by:
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the approximate length of the apothem is:
 
a = 10.91 feet
 
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A = 392.76 feet ^ 2
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