A train is moving at a uniform speed of 75 km/hour. (1) how far will it travel in 20 minutes.
(2) Find the time required to cover a distance of 250 km.

How can the correlation in the scatter plot graph below best be described? positive correlation negative correlation both positive and negative no correlation

Points a, b, and c form a triangle. complete the statements to prove that the sum of the interior angles of triangle abc is 180

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?