The initial deceleration is 4 m/s^2, so this means that considering the first line segment, 
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The total distance traveled is 4 km, which is equal to 4000 meters. This is equal to the area under the graph, so 
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Answer:
A. Undefined will be your answer
Step-by-step explanation:
Answer:
Step-by-step explanation:
A number squared also means that the number is multiplied by itself twice.
Hello
Answer:
It has open-ended lines that will not form a polygon
Answer:
The speed in still water is 5 miles per hour.
Step-by-step explanation:
distance with current = 90 miles
distance against current = 10 miles
speed in still water = s
speed of current = 4 mph
speed with current = s + 4
speed against current = s - 4
time = t
speed = distance/time
distance = speed * time
With current:
90 = (s + 4) * t
Against the current:
10 = (s - 4) * t
We have a system of equations:
90 = (s + 4) * t
10 = (s - 4) * t
90 = ts + 4t
10 = ts - 4t
Subtract the second equation from the first equation.
80 = 8t
10 = t
t = 10
10 = t(s - 4)
10 = 10(s - 4)
1 = s - 4
s = 5
Answer: The speed in still water is 5 miles per hour.
