Answer:
f = l + -2lx-1 + 3x-1
Step-by-step explanation:
x/110 = (320-x)/90
<span> Cross multiply</span>
90x = 35200-110x
200x=35200
X = 35200/200 = 176 (distance traveled by train going 110 mph
176/110 = 1.6 hours = 1 hour and 36 minutes
Check: 110*1.6 = 176, 90*1.6 = 144
176+144 = 320
it will take 1.6 hours ( 1 hour 36 minutes) for the trains to meet
The graph crosses the x axis 3 times so there are 3 roots.
B
Answer:
7 units
Step-by-step explanation:
Simply count the units between A and B :)
Answer:
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Step-by-step explanation:
