Which linear equations have one solution? Check all that apply.
5x - 1 = 3(x + 11)
4(x - 2) + 4x = 8(x-9)
4(x-6) + 4 = 2(x-3)
2x - 4) = 5(x - 3) + 3
2(x - 1) + 3x = 5(x - 2) + 3

What is the solution to this system of equations? y= 2x - 3.5 x - 2y = -14

Which is the focus of a parabola with equation y2=4x

(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.)