in the sequence 12, 4, 18, –2, 5, . . , what is the value of a3?
–2
3
4
5
none of the above

Let the mean of the population be 38 instances of from 6" - 9" hatchings per nest, and let the standard deviation of the mean be 3. what sample mean would have a confidence level of 95% or a 2.5% margin of error?

With: label the vertices and all the elements needed. find x

Afarm that has 4 x 10^2 acres has 1.2 x 10^5 cattle. what is the average number of cattle per acre? write the answer in scientific notation. answere asap