Part1: Find the slope of the line that passes through the following points. (6 points;2 points each) A (10,4) and B (-2,-5) C (-7,1) and (7,8) E (4,1⅔) and F (-2,⅔)

If f(x)=3x+1 and f^-1=x-1/3, then f^-1(7)=

(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.)

Stephanie runs three days a week. she ran 3 2/3 miles on monday , 4 1/5 miles on wednesday , and 2 2/9 miles on friday. how many miles did she run this week ?