Laura & mary are doing their homework together. mary thinks the relation {(1, 1), (1, 3), (2, 3), (3, 4)} is a function, but laura doesn’t think it is. who is correct and why?

answer. d.289 hope that

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