Simplify (8 + 7i) + (2 – i)
a) 10 + 6i
b) 16
c) 4
d) 10 + 8i

Which value would be a solution for x in the inequality 47-4x< 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.)

What is the point slope form of a line with slope -5 that contains point (2,-1)