Use example 4.4 on page 163 of the textbook as a guide. a set of data points and the equations of two lines are given. for each line, determine . then, determine which line fits the set of data points better, according to the least-squares criterion. line

a. y = 1 + 0.9x line

b. y = 0.8 + 1.1x

w'x is 0.

hope it

hope it you

step-by-step explanation:

sin(7pi/6 - pi/3)  

= sin(7pi/6 - 2pi/6)  

= sin(5pi/6)  

= sin(pi - pi/6)  

= sin(pi/6)  

= 1/2  

sin 7pi/6 - sin pi/3  

= sin (pi + pi/6) - sin pi/3  

= -sin pi/6 - sin pi/3  

= -1/2 - sqrt(3)/2  

= -(1+sqrt(3))2

if you are saying purchasing 3 social media ads and one newspaper ad counts as one purchase then there are:

6 purchases

if you are asking how many of each then:

18 social media ads

6 newspaper ads