Answer:
it should be 2/12 and 9/11
Step-by-step explanation:
What are the brackets for? o and im srry for asking but could u mark this "answer" brainliest?? i just need one more to lvl up Im srry ik this isnt an answer but it would mean the world to me if u did
:D
Well, there are two solutions.
Add both sides by 15.75 then from here, you can use quadratic formula.
So your answer should be x = -2.44949 or 2.44949.
For 1 play, the chance of gaining $8 is 4/38, while the chance of losing the $1 is 34/38. Therefore, the expected value is ($8)(4/38) + ($-1)(34/38) = $(-1/19). Over 50 plays, which are mutually independent of each other, we multiply the number of plays by the expected value to get $(-50/19) = $-2.63.
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