A jar contains 6 red balls and 5 blue balls. Two balls are drawn at random from the hat without replacement. What is the probabi
lity that both the balls drawn are blue?
1 answer:
Answer: 2/11
Step-by-step explanation:
We are going to solve this by using a tree diagram. It makes it a lot easier. The tree diagram is attached below.
From the tree tree diagram,
Probability of picking a blue ball at the first draw is 5/11
Prbability of picking ble at the second draw, if the balls are picked without replacement is 4/10
Probability of drawing two blue balls are;
P(B,B) = 5/11 × 4/10 = 20/ 110
Divide the numerator and denominator by 10
P(B,B) = 2/11
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Answer:
y ≤ 2x -2 Option C.
Step-by-step explanation:
Equation of the dotted line which passes through (3,0) and (0,8) will be
y = mx+C
m = = -1
and C = 3
So equation will be y = x + 3
But shaded blue part is above the dotted line so inequality will be y> -x +3
Equation of the second solid line which passes through ( 0,-2) and (1,0) will be
y = mx + C
m = =
= 2
and C = -2
So equation of the line will be y = 2x - 2
But shaded yellow part is below the solid line.
So inequality will be
y ≤ 2x -2
Option C. is the answer.