Answer:
43rd term
Step-by-step explanation:
Arithmetic sequences are basically linear functions, so the same value is added every time. So, knowing that Asub1 is equal to one, and Asubn is equal to 169 we can take 169-1 and divide by our common difference. This is four as 5-1=4 and 9-5=4.
So, (169-1)/4=42.
This is however 42 terms after Asub1, so this would be the 43rd teen of the sequence!
I do not see an answer, only because Zach's change in reading time increases exponentially, and Victoria's increases at a linear rate.
Answer: 10x-6
Step-by-step explanation:
we know that perimeter P is 2L+2W
2L= 2(3x+2)=6x+4
2W=2(2x-5)=4x-10
P=6x+4+4x-10=10x-6
Answer:
a) This is an experiment, since one of the variables is being controlled. The<u> light exposure is set to work 24h a day, this is done because the researcher has made a choice</u>. In an observational study, the researcher has no control over the variables, so no changes happen with the sample groups. Some notes are taken about their behavior, but there isn't any element that is being manipulated.
b) The control group is the one in which the fireflies keep their usual routine, there aren't any changes in their environment. This is the population exposed to normal daylight/darkness. The treatment group is the one in which the fireflies live under different conditions from what they are used to, being this the ones that are exposed to continuous light 24h/day.
c) The variable of interest in this study is the rate of survival after continuous light exposure compared to natural light exposure. The level of measurement used is ratio scale, then, since the question being made with this research is "how many individuals are going to survive?". Ratio scales allow reserachers to count concrete data.
Answer:
I would say... c.
Step-by-step explanation:
It is the second lowest so you would choose the second lowest answer.
