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Mathematics

1 answer:

kati45 [8]3 years ago

7 0

Answer:

use the pythagoras theorem ok for 3rd side

i.e. (5.6)²+(3.9)²=c²

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x-intercepts are found by setting y=0
$y=2x^2-8x-10\rightarrow0=2x^2-8x-10$
factor out a 2 $0=2(x^2-4x-5)\rightarrow0=x^2-4x-5$
 $0=(x-5)(x+1)$ roots should be x=-1,5
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Murljashka [212]

Answer:

b and a