Exercices sur les équations 1 1- Résoudre dans ℝ: a) x+3=2 b) -5+x=4 c) -4x=10 d) 3-x=-8x-2 2- Résoudre dans : ℝ a) 13+ 3 2 x=1 b) 3 2 x+ 1 4 = 7 4 c) 2 x−3 7 = x−1 3 3-Résoudre dans : ℝ a) (3x-1)2=0 b) (2x+5)2=9 c) (2x+5)2=3 d) (2x+5)2=-3

What properties allow transformation to be used as a problem solving tool

Is the figure congruent? yes or no?

(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.)