The exponential function is often used to model the growth or decay of a population
The population size of the yeast cell after 3 hours is 6.24 million
The given parameters are:
a = 3.1M --- initial number of cells
r = 0.4425 per hour --- rate
The nth term of an exponential function is:
f(n) = a(1+r)^n-1
After 3 hours; n = 3
So, we have:
f(3) = a(1+r)^3-1
Substitute values for a and r
f(3) = 3.1 (1+0.4425)^3-1
f(3) = 3.1 ( 1.4425)^2
f(3) = 6.24
Hence, the population size of the yeast cell after 3 hours is 6.24 million.
Read more about exponential functions at: brainly.com/question/3127939
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I believe it is the blue one but not 100% sure
Answer:
Introducing a change to the subgroup
Step-by-step explanation:
Given there are four statements. We have to find the one which represents one of the differences between an experiment and an observational study.
The answer is option 2. Introducing a change to the subgroup
Experimental and observational studies are both types of studies between which a number of differences can be identified. When conducting research studies, various types of research in order to arrive are adopted according to the need.
An experimental study is a study where the researcher has control over most of the variables.
On the other hand, an observation study is a study where the researcher cannot control any variable but merely observes the subject without controlling any variables.
ax²+bx+c=0
4a²x²+4abx+4ac=0
4a²x²+4abx=-4ac
4a²x²+4abx+b²=b²-4ac
(2ax+b)²=b²-4ac
