(x+7) (x-7)
Because: the difference of two squares.
Answer:
Step-by-step explanation:
Red = 4
Blue = 6
Yellow = 2
Total = 4 + 6 + 2 = 12
Probability is that event divided by total event, so
Probability of Blue = 6/12 = 1/2
Since, we put the blue again back into the bag, so we still have same amount of each (this is with replacement, probability).
So, 2nd time:
Probability of Blue = 1/2 (same)
Now, we need to multiply these to get probability of blue IN A ROW:
1/2 * 1/2 = 1/4
Answer:
24/49
Step-by-step explanation:
The options to get 2 of different color is picking blue then red or red then blue.
Starting with picking blue then red.
The chance to pull blue first is 3/7. Then since the marble is replaced the chance to pull red next is 4/7.
The chance to get those in that specific order is the product of the two fractions. (3/7) * (4/7) = 12 / 49
The second option of getting red then blue will be the same as above but 4/7 then 3/7 with the same result of 12/49.
To finish, add the two probabilities together 12/49 + 12/49 = 24/49.
I think it is D) positive association, non-linear