Which are difference of two squares? Select two options. a x2 − 9
b x2 −100
c x2 − 4x + 4
d x2 + 10x + 25
e x2 + 15x + 36

the answer is 62.8 cubic units

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