Hold on I’m working this problem out
Answer:
chance of winning $100 = 1/1000
chance of winning $50 = 5/1000 = 1/200
cost of ticket = -1
E[x] = 100* 1/1000 + 50* 1/200 -1
= 0.1 + 0.25 - 1 = -0.65
Step-by-step explanation:
hope this helps
Answer:
cvbnmkjhyt
Step-by-step explanation:
w34567
Answer:
11.8in^3
Step-by-step explanation:
i just had it
Step-by-step explanation:
8. Let's call the number x. We can set up the equation -3x - 5 = -10. Adding 5 to both sides, we have -3x = -5, and when we divide both sides by -3, we have x = 5/3.
9. Again, we'll call the number x. The equation is 2x - 3 = -13. We can write -3 instead of +(-3) because adding a negative number is the same as subtracting. Adding 3 to both sides, we have 2x = -10, and dividing bu -2, we have x = -5. Hope this helps!
