Answer:
Step-by-step explanation:
250 is the answer from a high schooler
The total snowfall throughout the day is the expected value of the distribution.
The estimated total snowfall during the day is 30 inches
Start by calculating the average rate of snow collected on that day.
This gives
Divide 7.5 by 6
There are 24 hours in a day.
So, the total snowfall is:
This gives
Multiply
Hence, the estimated total snowfall during the day is 30 inches
Read more about expected values at:
brainly.com/question/13005177
Since the object is a cube, times 42 three times by itself. You have to do this because it is length x width x height. 42 x 42 x 42. The answer you're looking for is 74,088 cubic inches because it is three-dimensional.
The probability any one system works is 0.99
So the probability of any one system failing is 1-0.99 = 0.01, so basically a 1% chance of failure for any one system
Multiply out the value 0.01 with itself four times
0.01*0.01*0.01*0.01 = 0.000 000 01
I'm using spaces to make the number more readable
So the probability of all four systems failing is 0.00000001
Subtract this value from 1 to get
1 - 0.00000001 = 0.99999999
The answer is 0.99999999 which is what we'd expect. The probability of at least one of the systems working is very very close to 1 (aka 100%)
Answer:
F(-2)=-2²+3(-2)-2=4+-6×-2=4+12=16
