What is the z-score of a data value that is 3 standard deviations to the left of the mean?
1 answer:
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Answer:
Step-by-step explanation:
Let's find a solution by understanding the following:
The acceleration rate is defined as the change of velocity within a time interval, which can be written as:
where:
A=acceleration rate
Vf=final velocity
Vi=initial velocity
T=time required for passing from Vi to Vf.
Using the problem's data we have:
Vf=65miles/hour
Vi=6miles/hour
T=14.8seconds
Using the acceleration rate equation we have:
, but look that velocities use 'hours' unit while 'T' uses 'seconds'.
So we need to transform 14.8seconds into Xhours, as follows:
Using X=0.0041hours in the previous equation instead of 14.8seconds we have:
In conclusion, the acceleration rate is
Answer:
<h3>Length = 12 ft</h3> Width =
Step-by-step explanation:
Given,
Area of rectangle =
Width = X
Length = 2x + 5
Now,
Either
Or,
Negative value can't be taken.
So, width =
Again,
Finding the value of length,
Length =
Length = 12 ft