Hey anyone wanna talk... i have literally nothing to do :/

The border line of the linear inequality 4x + 7y < 5 is dotted true or false?

The roots of the function f(x) = x2 – 2x – 3 are shown. what is the missing number?

(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.)