A dolphin jumps from the water at at initial velocity of 16 feet per second. The equation h = -16t2 + 80t models the dolphin's height at any given time, t. What is the maximum
height the dolphin jumps?

Consider circle h with a 3 centimeter radius. if the length of minor arc what is the measure of zrst?

Tom had a total of $220 and he spent $35 on a basketball ticket . what percent of his money did he have left?

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?