Answer:
11 feet, 26 feet, 29 feet
Step-by-step explanation:
(2x+4 middle) + (3x- 4 longest) + (x smallest )= 66
2x +3x +x +4 - 4= 6x
6x = 66
x= 66/6
x = 11
smallest = 11 feet
middle = 2(11) + 4 = 26 feet
longest = 3(11) -4 = 29 feet
Hello,
y-3x=2==>x=(y-2)/3
==>(x+1)²=((y-2)/3+1)²=(y+1)²/9
y=(x+1)²-5
==>y=(y²+2y1)/9 -5
==>y²-7y-44=0 ; Δ=7²+4*44=225=15²
==>y=(7+15)/2 or y=(7-15)/2
==>y =11 and x=(11-2)/3=3
or y=-4 and x=(-4-2)/3=-2
sol={(3,11);(-2,-4)}
