Answer:
Step-by-step explanation:
The same space of this experiment is the possible outcomes of selecting two out of the three breakfast. let the sample space = B
the sample space = {(cereal and egg), (cereal and fruit), (fruit and egg), (fruit and cereal), (egg and fruit), (egg and cereal)}
b) A = {(cereal and egg), (cereal and fruit), (egg and cereal), (fruit and cereal)}
A ⊆ B =n(A) ≤ n(B) (4≤6) = {(cereal and egg), (cereal and fruit), (egg and cereal), (fruit and cereal)} ⊆{(cereal and egg), (cereal and fruit), (fruit and egg), (fruit and cereal), (egg and fruit), (egg and cereal)} where a subset means all the element of A can be found in B.
Answer:
A positive number is the opposite of a negative number witch is negative
ex: 1,2,3,4,5,6,7,8,9
A negative number is the opposite of a positive number
ex: -1,-2,-3,-4,-5,-6,-7,-8,-9
Answer:
x = 0 x= -9
Step-by-step explanation:
x^2 + 18x = 9x
Subtract 9x from each side
x^2 + 18x-9x = 9x-9x
x^2 +9x = 0
Factor x from the left hand side
x(x+9) =0
Using the zero product property
x=0 x+9 = 0
x =0 x+9-9 = 0-9
x = 0 x= -9
