Urgent math needed table attached below the table shows five activities (in days) for a project. use pert (program evaluation and review technique) to calculate the expected time of completion for activity b. question 2 options: 11 days 14 days 9 days 8 days

Abox contains 1 plain pencil and 4 pens. a second box contains 5 color pencils and 5 crayons. one item from each box is chosen at random. what is the probability that a plain pencil from the first box and a color pencil from the second box are selected? write your answer as a fraction in simplest form.

What is the relationship between all triangles that can be drawn given the same three angles

Evaluate the discriminant of each equation. tell how many solutions each equation has and whether the solutions are real or imaginary. x^2 - 4x - 5 = 0