How do you find expected values and how are they used?
Expected values can be found doing probability*value and they are used to determine if something is fair or unfair.
400
Expand completely: (2x-5)^3
8x^3-60x^2y+150xy^2-125
500
You invest $1000 in an account that yields 8% interest. In how many years will you have doubled your money?
8.7 years
500
Solve: x^2+y^2+2x-6y+1=0
x^2+2y^2+2x-4y+4=0
(-2, 3), (4, 3)
500
Find the infinite sum: 81+54+36+...
243
500
What is the probability of rolling an even number on a die and flipping heads?
1/4
500
You take some ice cream out of the freezer (-4 degrees F) and put it on the counter (70 degrees F). In 15 minutes, the ice cream is 20 degrees F. What is the cooling constant?