For Vectors A and B A ( 1,2 ), ( 6,5 ) and B ( 2,1 ), ( 7,4 ) Find a. Pos vector, Abs Value, Angle, Unit Vector
Move A to (-1,-1) ,(?,?)
Move B to (?,?), (3,-1)
Find C = ½ A + ½ B
Find dot product of A and B
Find Angle in degree between A and B

2people are trying different phones to see which one has the better talk time. chatlong has an average of 18 hours with a standard deviation of 2 hours and talk-a-lot has an average of 20 hours with a standard deviation of 3. the two people who tested their phones both got 20 hours of use on their phones. for the z-scores i got 1 for the chatlong company and 0 for talk-a-lot. what is the percentile for each z-score?

If you have a set of parallel lines a and b cut by transversal x, if angle 1 = 167 degrees, what is angle 4 and why. also what is the measure of angle 5 and why? you need to use the names of the angle relationship and explain.

About 9% of th population is hopelessly romantic. if 2 people are randomly selected from the population, what is the probability that at least 1 person is hopelessly romantic?