Need help

1 7/9 ÷ 4/5 =
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Can (3,5 and square root 34) be sides on a right triangle?

1- identificar select the category that corresponds to each term. january 23 11: 59 pm unlimited attempts remaining grade settings 276-279 vocabulary list modelo fiesta quinceañera casada adolescencia viudo juventud navidad niñez vejez aniversario de bodas divorciado madurez cumpleaños soltera

[10 points, algebra 2]according to my answer key the restrictions are -1 and 4. but why not positive 1?