9+8 is the commutative property
Answer:
the answer would be 2/5
Step-by-step explanation:
you add up all of the boys to get 8
there are, in total 20 students that can be chosen, so there is an 8/20 chance that it would be a boy, simplified that is 2/5
21,618.........................
So, this is asking for any number that subtracts to = 16-7
Well, 16-7= 9 so use any two numbers that would subtract to equal 9
Like so:
11-2=9
18-9=9
34-25=9
-2-11=9
Etc....
Hope this helps! :)
The angles of a triangle add to 180 degrees so the remaining angle must be 90°.
This triangle is half a square. It's one of the two tired triangles of trig, the other being half an equilateral triangle, 30°/60°/90°.
