Sing the definition of an even function, show that y=- cosx is even.

Factor the polynomial 8y^2 - 72 btw "^" means exponent

On average, how many more hits will he get when he bats 100 times at home during the day as opposed to 100 times away at night?

Using pert, adam munson was able to determine that the expected project completion time for the construction of a pleasure yacht is 21 months, and the project variance is 4. a) what is the probability that the project will be completed in 17 months? b) what is the probability that the project will be completed in 20 months? c) what is the probability that the project will be completed in 23 months? d) what is the probability that the project will be completed in 25 months? e) what is the due date that yields a 95% chance of completion?