The height of a rocket, in meters, is approximated by the polynomial -5t^2+45t+4 where t is time in seconds after the rocket's launch. What is the height of the rocket after 3 seconds? A.124 meters
B.109 meters
C.86 meters
D.94 meters

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?

The monetary value earned for selling goods or services to customers is called a.) revenue b.) assets c.) money d.) accounting

The birth weights of newborn babies in the unites states follow in a normal distrubution with a mean of 3.4 kg and standard deviation of 0.6 kg. reaserches interested in studying how. children gain weights decide to take random samples of 100 newborn babies and calculate the sample mean birth weights for each sample