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HELP?????? I'm trying to understand but I don't get it

HELP?????? I'm trying to understand but I don't get it-example-1
User Trevorade
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1 Answer

3 votes

5.7^2 + 9.8^2 - 10.2^2 / 2*5.7*9.8 =

24.49/111.72 = 0.219 = 0.22

answer is 0.22



User Cfchou
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