(a) I'd say sometimes true. 3 + -7= -4 , -5 + 3= -2 , 8+-5=3, 7+-7=0
(b) I'm not too sure about this one but I what i know is that if the positive number is higher than the negative number it will be a positive. If you are adding both a negative number and a positive number that is the same value it will be 0. And if you are adding a negative that is higher than the positive it will be a negative number.
I hope this helped a bit.. (:
3 + (-4) is the same thing as 3 - 4.
3 - 4 = -1
Hope this helped :)
Answer:
11x 5 =55-22=33
Step by step explanation
i think it is useful nark me as branlist
did this answer your question...no. OK well that is your loss
Answer: 
Step-by-step explanation:
From the given figure it can be seen that
Total number on cube= n(S)=6
Intersection of A and B = n(A ∩ B)= 2
Therefore,
Also, The number of elements in A = 2
Therefore,
Similarly, The number of elements in B= 6
Therefore,
The formula to find the conditional probability is given by :-
