Polar bears are listed as a threatened species. in 2005, there were about 25,000 polar bears in the world. if the number of polar bears declines by 1000 each year, in what year will polar bears become extinct? what equation models the number of polar bears? how can graphing the equation help you solve the problem? I just need to graph this please help! <3 please if your smart (30 points)

this is a good question! i’ll do some research and what i find, i’ll contact you asap when i have something! ✊

irst, find the z score of a score of 80. this is given by the formula z = (x-u)/o, where x is the score, u is the mean, and o is the standard deviation. this gives

z = (80-78)/12 = 1/6 = .1667

now, find what percentile a z score of 1/6 correlates to in the normal distribution.

a z score of 1/6 = .1667 is equivalent to the 56.36th percentile of the distribution. so the probability a score is over this is 1-.5636 = .4364

the mean of a sample mean is equal to the original mean. however, the standard deviation of a sample mean is equal to the original standard deviation divided by the square root of n (sample size). so the new standard deviation is 12/sqrt(16) = 3.

the new z score is 80-78/3 = 2/3 = .667. this is equivalent to the 74.86th percentile. so the probability that the mean will be greater than this score is 1-.7486 = .2514.

answer: i think it is c

5.7622

step-by-step explanation:

the ten thousandths place is the 2. you round it up if, that number in whatever place is 5 or higher.