31/6 - 11/2 is the same as 31/6 - 33/6
31/6 - 33/6 = -2/6
-2/6 reduced is -1/3
Answer:
2 3 5
Step-by-step explanation:
X+2y=11 x=8
9 9
x-2y=-1
1 1 x=2
Answer:
b
Step-by-step explanation:
null hypothesis will be book sales are related to bakery sales.
We reject null hypothesis if we do not have statistical evidence that there is significant relationship between book sales and bakery sales.
Answer:
Below.
Step-by-step explanation:
a) A = {1, 2, 5, 10}
b) B = {1, 3, 5, 15}
c) A∩B = {1, 5} ( elements common to A and B).
d) A∪B = {1, 2, 3, 5, 10, 15} (total elements in A and B).