15. According to the Midsegment Theorem, what is the length of the midsegments in the diagram?

The table shows the balance of a money market account over time. write a function that represents the balance y (in dollars) after t years.

How do you solve a question like this?

(b) suppose that consolidated power decides to use a level of significance of α = .05, and suppose a random sample of 100 temperature readings is obtained. if the sample mean of the 100 temperature readings is x⎯⎯ = 60.990, test h0 versus ha and determine whether the power plant should be shut down and the cooling system repaired. perform the hypothesis test by using a critical value and a p-value. assume σ = 5. (round your z to 2 decimal places and p-value to 4 decimal places.)