Evaluate the expression when a=2 and b=4

6

Step-by-step explanation:

Substitute a = 2 , b = 4 into the expression

=

=

=

= 6

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