In a certain city, projections for the next year indicate there is a 20% chance that electronics jobs will increase by 1300, a 50% chance that they will increase by 300, and a 30% chance they will decrease by 900. find the expected change in the number of electronics jobs in that city in the next year. the expected change is an increase of nothing jobs.

Danny draws a transversal, t, on two parallel lines ab and cd, as shown below: he makes the following table to prove that the alternate interior angles are equal: which is the missing justification? (6 points) corresponding angles formed by a transversal on parallel lines are supplementary. corresponding angles formed by a transversal on parallel lines are congruent. co-interior angles formed by a transversal on parallel lines are congruent. co-exterior angles formed by a transversal on parallel lines are congruent.

Find an equation of the line perpendicular to the graph of 28x-7y=9 that passes through the point at (4,1)

Find the area of the regular hexagon if a side is 20 cm.