Answer:
in short, Yes they are always rational.
here's why...
E.g. suppose 
and 
are fractions, that means that a,b,c,d are all integers, and b and d are not zero. finding the sum the numerator, and denominator would also have to be integers. the denominator of the sum can't be zero since the denominators of the fractions were not zero, and would give 
and since they are bound by addition (sum means addition) they must also be rational since eit would equal a bigger integer than initially had
Step-by-step explanation:
There is a mathematical formula which relates these quantities, given by:
Using this, we have:
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Answer:
(-3,-4)
Step-by-step explanation:
The vertex is the minimum or maximum or a parabola.
This is an upward opening parabola, so it has a minimum.
The minimum is (-3,-4)
Answer:
The best population for Maya's school would be all the seventh grade students at Maya's school, because that is who she wants to know how many games they play.
D. All the seventh grade students at Maya's school.
Hope this helps ;)
Answer:1.5,-1.5
Step-by-step explanation:
I just answered it
