10 liters to gallons is 2.6 gallons.
The only thing you can do here is to try to simplify, so I'll assume that's what you want to do.
The numerator is a difference of squares, so it's easy to factorize:
In the denominator, we factorize by grouping:
So we have
Y= -3x+17
Y-y1= m(X-X11)
-3 is m
5 is X1
2is Y1
Y-2=-3)X-5)
Y-2= -3x+15
Add2
Y=-3x+17
Answer: B. Controlled experiment
Step-by-step explanation:
This is a controlled experiment because the variables in the question are manipulated by the researcher. We are told that while one group watches television before going to sleep, the other group does not.
The controllers won't have control over the variables that were used if it was an observational study while for a survey, it has to do with collection of information regarding certain topics or happenings in order to have people's perception on the topic or area of interest.
Answer:
see below
Step-by-step explanation:
The ratio of map distance to actual distance is a constant (for a map of a sufficiently small area).
(0.5 in) / (25 mi) = (map distance between cities) / (725 mi)
