Which of the following statements regarding PERT analysis is NOT true? Only critical activities contribute to the project variance. Project standard deviation is the sum of all critical activity standard deviations. The most likely time is different from the expected activity time. Each activity has three estimates of its duration. Project variance is the sum of all critical activity variances.

Provide an example of a trigonometric function and describe how it is transformed from the standard trigonometric function f(x) = sin x, f(x) = cos x, or f(x) tan x using key features.

Which of the following is the shape of a cross section of the figure shown below

Consider this equation. |y + 6| = 2 what can be concluded of the equation? check all that apply. there will be one solution. there will be two solutions. the solution to –(y + 6) = 2 will be also be a solution to the given absolute value equation. the solution(s) will be the number(s) on the number line 2 units away from –6. the value of y must be positive since the variable is inside absolute value signs.