1. Given the initial ( 0 , − 2 ) and terminal ( 3, 6 ) points of a vector, how do you write a linear combination of the standard unit vector ˆ i and ˆ j ?
2. given the initial ( -1,-5 ) and terminal ( 2,3 ) points of a vector, how do you write a linear combination of the standard unit vector ˆ i and ˆ j ?

This race was first held in 1953 on august 16th. every decade the race finishes with a festival. how many years is this?

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?

Parabolas y=−2x^2 and y=2x^2 +k intersect at points a and b that are in the third and the fourth quadrants respectively. find k if length of the segment ab is 5.