Change the - to sum
x+-2y=8
The second one to the opposite
And x is 2 and y is 2 so
It’s 2+2 is 4 and 4 multiplied by 2 is 8
I hope I am correct, good luck! :)
I’m thinking it’s -1 and 1
Answer:
a) What is the probability that we will pick a blue ball?
there is a 50% chance that urn 1 will be selected and the possibility of a blue ball is 3/4 x 0.5 = 1.5/4
there is also a 50% chance that urn 2 will be selected and the possibility of a blue ball is 2/4 x 0.5 = 1/4
the probability of choosing a blue ball = 1.5/4 + 1/4 = 2.5/4 or 5/8
b) If we picked a blue ball, what is the probability that the selected urn was urn-1?
there are 5 blue balls in total, and 3 of them come from urn 1
c) Suppose we picked a blue ball. If we randomly pick one additional ball from the same urn, what is the probability that we pick a red ball?
there is a 50% chance that urn 1 will be selected, and the possibility of a red ball after a blue ball is 1/3 x 0.5 = 0.5/3
there is also a 50% chance that urn 2 will be selected and the possibility of a red ball after a blue ball is 2/3 x 0.5 = 1/3
the possibility of choosing a red ball after a blue ball = 0.5/3 + 1/3 = 1.5/3 = 1/2
Answer:
B
Step-by-step explanation:
<h3>Arkadaşım cevap istiyorsan benim soruma cvp ver</h3>
The answer is:21
You can go to your internet browser and type in... Desmos graphing calculator and then go to functions on the right click on stats and then click on median,mean, or stdev, and then type your numbers in and it will give you your answer. Hope this helped :)