<span> Train1 = 85 mph</span>
Train 2 = 105mph
85+105 = 190 mph combined speed
Time = distance/ speed
Time = 456/190 = 2.4 hours = 2 hours and 24 minutes
Answer:
-296
Step-by-step explanation:
Answer:
The width is 12 m and the length is 14 m
Step-by-step explanation:
Let w = width
l = w+2
A = l*w
168 = (w+2) * w
Distribute
168 = w^2 +2w
Subtract 168
0 = w^2 +2w -168
Factor
0 = (w-12)(w+14)
Using the zero product property
w-12 =0 w+14 =0
w=12 w=-14
Since we cannot have a negative width
w=12
l = w+2 = 12+2 = 14
Answer:
–2x2 + 13
Step-by-step explanation:
