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zheka24 [161]
3 years ago
13

Using the quadratic formula I can't remember what to do next ​

Mathematics
1 answer:
Advocard [28]3 years ago
4 0

Answer: you square root it.

5r^2/5 = 80/5 =16

Sqr root of r^2=Sqr root of 16

r=4

Step-by-step explanation:

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