Answer:
No! It's the fact they meet at a 90 degree angle.... Please don't answer the questions unless you know the answer... Thanks you
Step-by-step explanation:
Vas happenin?
Hope your day is going well
The slope is 3-1/ -5 - -2
2/-2
The slope is -1
Hope this helps *smiles*
Average speed = (total distance traveled)/(total travel time)
= (total distance)/(time of 1st journey<span> + </span>time of 2nd journey<span> + </span>time of 3rd journey)
Let d = the distance between Town A and Town B
<span>So, total distance traveled = </span>3d
Time = distance/speed
time of 1st journey = d/x
time of 2nd journey = d/y
time of 3rd journey = d/z
<span>Total time = </span>d/x<span> + </span>d/y<span> + </span>dz
<span>To simplify, rewrite with common denominator: </span>dyz/xyz<span> + </span>dxz/xyz<span> + </span>dxy/xyz
So, total time = (dyz + dxz + dxy)/xyz
Average speed = (total distance)/(total time)
<span>= </span>3d/[(dyz + dxz + dxy)/xyz]
= (3dxyz)/(dyz + dxz + dxy)
<span>Divide top and bottom by d to get: (3xyz)/(yz + xz + xy)</span>
Answers:
a) 0.091
Step-by-step explanation:
We are given the following information in the question:
Mean, μ = 140 minutes
Standard Deviation, σ = 15 minutes
We are given that the distribution of time watching videos is a bell shaped distribution that is a normal distribution.
Formula:
a) P(time is less than 120 minutes)
Calculating the value from the standard normal table we have,
The probability that an 18- to 24-year-old spends less than 120 minutes watching video on his or her smartphone per month is 0.091
