Answer:
12.56
Step-by-step explanation:
solve using the quadratic formula.
Exact Form:
l
=
√
2
,
−
Decimal Form:
1.77200451
…
1/7 or 7
IT might be Cuase 3/5÷ 21/5
3x5
5x21=
15/105 simplify and you get 1/7