Greg is in a car at the top of a roller-coaster ride. the distance, d, of the car from the ground as the car descends is determined by the equation d = 144 – 16t^2, where t is the number of seconds it takes the car to travel down to each point on the ride. for which interval of time is greg’s car moving in the air?

Which of the binomials below is a factor of this trinominal? x^2-13+30

Aswimming pool is a rectangle with semicircles on the end. the rectangle is 12 meters wide and 30 meters long. the diameter and width of the swimming pool are equal. sketch and label an overhead diagram of the swimming pool. find the area of the swimming pool floor.

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?