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Elis [28]
2 years ago
6

How do you solve? Help?

Mathematics
1 answer:
Vinvika [58]2 years ago
4 0
Plug in a -20 wherever you see a b
(-20)^2 +4*-20-89/13
400 + -80-89/13
400 - 169/13
400-13
=387

Hope this helps
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Downstream           4           *       x              =          4(x)

Upstream                6           *     x - 2           =        6(x - 2)

distance downstream = distance upstream:

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