Answer:
a) 1/27
b) 2/91
Step-by-step explanation:
A bag contains 10 red marbles and 5 blue marbles (15 marbles in total). You randomly select 3 marbles from the bag.
a) You replace each marble before selecting the next one.
The probability of selecting one blue marble is
then the probability that all 3 marbles are blue is
b) You do not replace each marble before selecting the next one. Each time the number of blue marbles decreases by 1 and the total number of marbles decreases by 1 too. So the probability that all 3 marbles are blue is
There are a total of 16 movies to choose from and 6 of them are comedy. This means that you have a 38% of choosing comedy. But the chances of you not choosing comedy is 62%. And since your friend is also choosing, the chance of neither of you not choosing is cut in half.
So, the final answer of neither of you choosing comedy is 31%
(I don't know whether it's dependent or independent)
Hope this helps but I think the answer is A.To find this look at the points on the graph and find out what their ordered pairs are. Once you do that look at the x values for all the ordered pairs.Example the x value for the ordered pair (-3,-1) is -3.After you have found all the x values put them in order from least to greatest.I any x values are repeated then leave them out.Example if your x values are 0,1,1,2,3,3,4 then leave the extra 1 and 3 out and then you have 0,1,2,3,4.Once you have put the x values in order from least to greatest and left out any extra repeated x values the you are done and you have your domain for the function.
A = a^2.....where " a " is the size of 1 side
A = 256
256 = a^2...take sqrt of both sides, eliminating the ^2
sqrt 256 = a
16 = a
so each side is 16 ft....now we find the perimeter
P = 4a....where " a " is the size of each side
P = 4(16)
P = 64.......so they will need 64 ft of fencing <===
