when solving the equation 4(3x^2 2)-9=8x^2 7, emily wrote 4(3x^2 2)=8x^2 16 as her first step. which property justifies emilys first step

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step-by-step explanation:

so, converting firstly the mixed fractions to improper fractions and then "adding".

isaiah walks 3 miles due north, turns and then 5 miles due east. how far is he from his starting point?

a^2 + b^2 = c^2

let c = distance from starting point.

(3)^2 + (5)^2 = c^2

9 + 25 = c^2

34 = c^2

sqrt{34} = sqrt{c^2}

sqrt{34} = c