Answer:
8
Step-by-step explanation:
A ball is rolled uphill a distance of 4 meters
The ball rolls downhill 12 meters before coming to rest
Therefore the ball displacement can be calculated as follows
= 12-4
= 8
Hence the displacement is 8
7.188 m
use the pythagorean therom
We will be using the fact that , where is the probability that the first bulb works and is the probability that the second bulb works.
The probability that the first bulb works is . However, when we take one out (given that the first bulb works) we now have 19 working bulbs and 4 bad ones. This means that the probability that the second bulb works is .
Now, we can find our final probability:
multiply both sides by -3 , -6*-3 equals 18.
d is less than or equal to 18