Answer:
166.6
Step-by-step explanation:
That;s what I got am not sure
S=2(4x+2x)+4x^2=4x^2+12x
4x^2+12x=7
4x^2+12x-7=0
D=12^2-4x4x(-7)=256
X1=(-12-16)/(2x4)=-3.5 impossible
X2=(-12+16)/(2x4)=0.5
A
Answer:
-3 and -10
Step-by-step explanation:
Answer:
b) 2 hours and 35 minutes