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Mamont248 [21]
3 years ago
9

8.235×10 to the power of -4 scientific notation

Mathematics
1 answer:
sashaice [31]3 years ago
3 0
0.0008235 (message me if u need more explanation)
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Find the distance between the points (-4, -5) and (3, -1).
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Answer:

Square root of 65 or 8.06  to the nearest hundredth.

Step-by-step explanation:

We use the Pythagoras Theorem ( Distance Formula):

This = √ [( x2 - x1)^2 + (y2 - y1)^2 ]

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Step-by-step explanation:


6 0
3 years ago
A train travels between two stations 1/2 mile apart in a minimum time of 41 sec. If the train accelerates and decelerates at 8 f
igomit [66]
It is important to notice firs of all that the train with no stop acceleration and them no stop acceleration would have a faster travel between stops. given this is safe to assume that there is a period during while the train is not accelerating nor decelerating. To find the time that is speed is constant
let's assume non-stop accelerating and decelerating and the time lost (subtraction of both) is the time the train had constant speed:

assuming same time accelerating a decelerating we have that the distance is

x = voT + 1/2aT^2 (initiial speed = 0) (0.25 miles = 1320 feets)
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v = v0 + aT (initial speed = 0)
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v = 145.36 feets/sec

distance at full speed

x = v*t
x = 145.36*4.66 = 677.38 feets



 
7 0
4 years ago
Read 2 more answers
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