Answer:
(a) P(sum is 8) = 1/20
(b) P(sum is 6 or less) = 3/10
(c) P(first number is 2 or the sum is 5) = 3/10
Step-by-step explanation:
(a)
The probability (P) of having 8 as the sum of the numbers is;
P(3 and 5) = 1/5 × 1/4 = 1/20
(b) Probability that the sum of the numbers is 6 or less.
P(sum is 6) = P(2 and 4) or P(1 and 5) = 1/20 + 1/20 = 1/10
P(sum is less than 6) = P(1 and 4) or P(1 and 3) or P(1 and 2) or P(2 and 3) = 1/20 × 4 = 1/5
P(sum is 6 or less) = 1/10 + 1/5 = 3/10
(c) The first number is 2 or the sum is 5
P(first number is 2) = 1 - P(first number is 1) - P(first number is 3) - P(first number is 4) - P(first number is 5) = 1 - 4(1/5) = 1/5
P(sum is 5) = P(1 and 4) or P(2 and 3) = 1/20 + 1/20 = 1/10
P(first number is 2 or sum is 5) = 1/5 + 1/10 = 3/10
Answer:
Step-by-step explanation:
we need the equation to be like y=mx+b so we have to simplify our equation
2y=2x+6
divide everything by 2
so it’s y=x+3 and that’s ur answer
Answer:
All of them are right
Step-by-step explanation:
Are you sure the question was that?
Collinear means that it lies on the same line
Now, from every 2 points passes a unique line
So(0,0) and (3,2) are in a line
(0,0) and (1,0) are in an other line and so on
Answer:
1x-1y
Step-by-step explanation:
Good Job
And always keep your eyes on ur own paper
