Question

Help??????



Below

Answer 1

R = Real
Q = Rational
Z = Interger
W = Whole

Answer 2

For the first one, since children can only come as whole people (although why there are separate choices for 'whole' and 'integer' I have no clue), the only possible solution is the one which rules out any chance of having 1/2, 1/4 or 0.7384578293 children (i.e. not real or rational!)

Answer 3

Well whole number are like counting numbers. 0,1,2,3,4,...
Integers include negative numbers like -1,-5,...

Answer 4

Ahh, okay. At my university, we call 'whole' numbers positive integers (Z+) or natural numbers (N).

You haven't told us what N is, but since the person has only 'possibly' drank some, the answer cannot involve a strict inequality (must be less than OR equal to). It also must involve a maximum of 12 and a minimum of 0 (again, not strictly). The solution will be the last one.

Answer 5

For the third question, consider the fact that you can have any of the given types as a quantity of liquid, so you have to choose the one which includes all of them. Real numbers are the set of all rational and irrational numbers. Therefore, the answer is R.

You could also get this by taking the specific example of the number pi = 3.14...
Pi is an irrational number, but you could, technically, have an irrational amount of liquid - it would just be very difficult to measure as such.

However, it depends on how it has been taught to you as to whether you include technicalities, as I have done, or whether you settle for rationals, which can be measured.

Answer 6

\[N=\left\{ 1,2,3,4,5,........... \right\}\]
\[W=\left\{ 0,1,2,3,4,5,......... \right\}\]
Integer I or Z=\[\mathbb{Z} =\left\{ ........,-3,-2,-1,0,1,2,3,....... \right\}\]