When using elimination to solve 2x-3y = 4 7x+ 6y = -1 what would be a possible first step? a 4x – 6y = 8 7x + 6y = -l b x = 3/2y + 2 7x + 6y = -1 c 2x -3y = 4 x = -6/7y – 1/7 d y = 2/3x – 4/3 7x + 6y = -1

Identify the graph of y = ln x + 1.

Do social recommendations increase ad effectiveness? a study of online video viewers compared viewers who arrived at an advertising video for a particular brand by following a social media recommendation link to viewers who arrived at the same video by web browsing. data were collected on whether the viewer could correctly recall the brand being advertised after seeing the video. the results are given below. correctly recalled the brandarrival 409153browsing20484b. conduct the hypothesis test, using the 0.025 level of significance. what is the value of the test statistic? χ2stat=what is the p-value? p-value=is this value significant atα=0.025?

Consider the set of all four-digit positive integers less than 2000 whose digits have a sum of 24. what is the median of this set of integers?