Europe. And just so you know this should have been under a different topic.
Answer:
The probability that a randomly chosen light bulb will last less than 900 hours is 0.1587.
Step-by-step explanation:
The life span of these light bulbs is normally distributed with a mean of 1000 hours and a standard deviation of 100 hours
Mean = 
Standard deviation =
We are supposed to find the probability that a randomly chosen light bulb will last less than 900 hours.i.e. P(x<900)
So, 

Z=-1
P(x<900)=P(z<-1)=0.1587
Hence the probability that a randomly chosen light bulb will last less than 900 hours is 0.1587.
Exponential growth<span> functions are often </span>used<span> to model population </span><span>growth or decrease and knowing the amount of people on earth is important. </span>
Answer:
36.875
Step-by-step explanation:
Answer:3888
Step-by-step explanation:
(6^4)3
=1296*3=3888
Hope I helped