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Yuliya22 [10]
3 years ago
9

PLEASE HELP! OR ILL FAIL!

Mathematics
1 answer:
ra1l [238]3 years ago
6 0
Ok........
How many were severe 
64.47
How many total injuries in total
(I think) 783.154

H0P3 It H3LPS :)
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\displaystyle\\3x^2-11x-20=0\\\\x_{1,2}=\frac{-b\pm\sqrt{b^2-4ac}}{2a}=\frac{11\pm\sqrt{121+4\cdot3\cdot20}}{2\cdot3}=\\\\=\frac{11\pm\sqrt{121+240}}{6}=\frac{11\pm\sqrt{361 }}{6}=\frac{11\pm19}{6}\\\\x_1=\frac{11-19}{6}=\frac{-8}{6}\\\\\boxed{\bf x_1=-\frac{4}{3}}\\\\x_2=\frac{11+19}{6}=\frac{30}{6}\\\\\boxed{\bf x_2=5}




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