Formula is A=1/2bh so answer will be 27 divided by 2
All these are true when X and Y are independent events:
1) The occurrence or lack of event X does not influence the occurrence of event Y, and the occurrence or lack of event Y does not influence the occurrence of event X.
2) P(X∩Y) = P(X) * P(Y)
3) P(X | Y) = P(X).... this is the probability of X given Y is equal to the probability of X.
4) P (Y | X) = P(Y)
5) P(A∪B) = P(A) + P(B) - P(A∩B)
She can buy 20 $1 items or 10 $2 items or a mixture of both.
Answer:
c = 13d
Step-by-step explanation:
Given:
4d=1/3(c-d)
Open bracket
4d = 1/3c - 1/3d
Add 1/3d to both sides
4d + 1/3d = 1/3c
Simply 4d + 1/3d
12d+d/3 = 1/3c
13/3d = 1/3c
Make c the subject of the formula
c = 13/3d ÷ 1/3
c = 13/3d × 3/1
c = 13d
