Answer:
Step-by-step explanation:
If you are confused as to how the answer is 9 then all we have to do is solve for c
c + 11 = 20
So in order to solve this you have to subtract 11 from 20 to get c alone on one side so...
c = (20-11)
c = 9
Y2-y1 divides by x2-x1 = 4/9
Answer:
Probability that the first marble is blue: 1/2 or 50%
Probably that the second is a 12: 1/12 or 8.3%
Step-by-step explanation:
There's 24 marbles in total with 12 of those being blue. So if you pull out a marble, there's a 12/24 chance of it being blue, which is reduced down to 1/2
Both the red and blue marbles are labeled 1-12, meaning there are two marbles labeled 12. So if you pull out a marble, there's a 2/24 chance that it'll be a 12, which is reduced down to 1/12. Remember that the first marble drawn is put back into the bag, so the second marble's probabilty isn't going to be 2/23
Hope this helps!
Answer:
Step-by-step explanation:
slope of a linear equation is m = y2 -y1/x2-x1
x- intercept, is where y = 0
y- intercept is where x = 0