Considering that the data is only noted and not changed, this is an example of an observational study.
<h3>What are observational and experimental studies?</h3>
- Experimental study: In an experimental study, there is an intervention in a sample, and it's effect is studied.
- Observational study: In an observational study, the sample is just analyzed, without any intervention.
In this problem, the data, which is the number of miles traveled, is only analyzed, no interventions are made, hence this is an example of an observational study.
More can be learned about observational studies at brainly.com/question/24321224
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Answer:
Step-by-step explanation:
Answer:
10x+1
Step-by-step explanation:
Answer: 63.75 = 85h
Solving gives 0.75 hours.
Step-by-step explanation:
we now that speed = distance / time
therefore time will be Distance / speed
Given that distance = 63.75miles
Speed= 6=85miles per hour
Time(h) = 63.75miles/ 85.---- equation 1
But from the options given, the equation that can also be used to find number of hours is
63.75 = 85h
such that making h subject of formula still give us
h= 63.75/85 as in equation 1 above
solving gives that Time ( h) = 0.75 hours .
Answer:
18in^3
Step-by-step explanation:
v=<u>πr^</u><u>2</u><u>h</u>
3
where π =3
diameter=3
,r=<u>3</u>
2
=1.5
h=8
v= <u>3</u><u>×</u><u>1</u><u>.</u><u>5</u><u>×</u><u>1</u><u>.</u><u>5</u><u>×</u><u>8</u>
3
v= 18
