Shifted 5 units to the left.
Answer:
The mathematical expectation of a student who purchases 10 tickets is -$39.65.
Step-by-step explanation:
A student that purchases 10 tickets out of 2900 has a probability of winning the cruise that can be calculated as:

Each ticket cost $5, so he has spent $50 for the 10 tickets.
Then, the expected value of this operation is equal to the expected value of the earnings (probability of winning the prize multiplied by the value of the prize), minus the costs:

The mathematical expectation of a student who purchases 10 tickets is -$39.65.
The third one is correcte
Answer:
5a to the power of 2 ofc
Step-by-step explanation:
Answer:
traingle
Step-by-step explanation:
back in the 6 grade i got the bad grades i was in love with my tutor