Answer:
There are both on the same side of the image "O and P"
If this dose not help please tell me!
A squared plus B squared equals C squared, so what you need to do it square 5 and 7.
5 = 25
7 = 48
Then add then and square root your answer. 48 + 25 = 73. 73 square rooted equals an rounded amount of 8.6. SO the answer is D
Answer:
Experiment
Explanation:
This would be an example of an experiment. This is an experiment because you are manipulating what the behaviour of the students is. A treatment is being applied to your subjects, as you are telling some of them to smoke and others not to. An observational study would require you not to interfere with the behaviour of the subjects, and simply observe what the outcome of their actions is in time.