Question

PLS HELP ME ASAP

find each value
ED=?
AB=?

Answer 1

Below

Explanation:

Since the '38' is halfway between the bases, it equls the average of the bases

[(4x+3) + (8x-15)] / 2 = 38 solve for x

12x-12 = 76

12x = 84

x = 7

AB = 4x+ 3 = 4 (7) + 3 = 31

EC = 18x -15 = 18(7) - 15 = 111 units