An airline is planning its staffing needs for the next year, if a new route is approved, it will hire 989 new employees. if a new route is granted it will hire only 101 new employees. if the probability that new route will be granted is 0.31, what is the expected number of new employees to be hired by the airline?

Which values for a and b will create infinitely many solutions for this system of equations? ax-y=8 2x+y=b

In the following diagram it is given that dec,ab || dc, ad || eb, and ad is congruent to bc. a)why isn't abc a parallelogram even though it has a pair of parallel sides and a pair of congruent sides b)explain why be must be congruent to bc. further explain what type of triangle this makes triangle abc and what it tells you about angle 1 and angle 2c) finally why must angle 3 be congruent to angle 1? further, explain why we know that angle 3 is congruent to angle 2

The probability that an adult possesses a credit card is .70. a researcher selects two adults at random. by assuming the independence, the probability that the first adult possesses a credit card and the second adult does not possess a credit card is: