Answer:
Step-by-step explanation:
I really hope you know how to use your calculator to find regression equations, because in this forum it is impossible to teach you how to do that. I ran the data through my calculator and got the exponential equation as
which means at 4 hours, we started with 1963 bacteria and it is growing at a rate of 114% each hour. Since we started out with an x value of 0, and that value represents the number of bacteria after 4 hours, then time 0 is 4 hours, which means that time 12 is 16 hours. We replace the x in the equation with a 12 and do the math:
which gives us, in the end,
y = 9460
This is simple, for the problem to be true the two things would have to = the same thing so X = 6, 6/3 = 6/3
Hello from MrBillDoesMath!
Answer: B
Remark: It is customary to use x^2, not x2, to indicate the square of x.
Discussion:
(4x + 3) ^ 2= ( 4x)^2 + 2 * (4x)(3) + 3^2 =
16 x^2 + 24x + 9
Thank you,
MrB
-1 because 6-5=1 and x takes 5 spaces while there’s 6 1’s
