Find all points on the graph of the function f(x) = 2 cos(x) + cos2(x) at which the tangent line is horizontal.( (x, y) = = (1
. - 1
(smaller y-value
x
(x, y) = ( an.2
(larger y-value)
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Describe what moves you could use to create the transformation of the original image shown at right

(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.)

Consider the diagram. lines e and c can be described as