Carletta and johnathan are entrepreneurs making mother boards for computers that are being manufactured by their friend, dewey sasser. carletta can make one mother board in 12 hours while it takes johnathan 16 hours to make one mother board. dewey suggested they could produce mother boards faster if they combined forces and worked together to build each mother board. what will be the time, in hours, that carletta and johnathan can build a mother board when working together? (round your answer to the nearest hour.)

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?

Give me the equations of two lines that have the same slope but are not parallel.

In the geometric progression –3, 12, −48… what term is 3,072?