Sadie the dog is sitting on the roof of his doghouse, 4.5 ft off the ground. he is watching a cat that is 16 ft away from the base of the doghouse. what is the angle of depression from the roof of the doghouse to the cat? round to the nearest hundredth. i watched the lesson but it all just went over my head, can someone simplify the explanation of how these problems work?

Measures of the angle of r, 31 s (x+4) t (3x+9)

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?

Need now max recorded the heights of 500 male humans. he found that the heights were normally distributed around a mean of 177 centimeters. which statements about max’s data must be true? a) the median of max’s data is 250 b) more than half of the data points max recorded were 177 centimeters. c) a data point chosen at random is as likely to be above the mean as it is to be below the mean. d) every height within three standard deviations of the mean is equally likely to be chosen if a data point is selected at random.