Melissa exercises for 20 minutes every day. she decides to increase her daily exercise time by 5 minutes each week. however, according to her doctor’s orders, she can spend no more than 45 minutes a day exercising. for how many weeks can melissa increase her exercise time this way?
a. at least 13 weeks
b. at most 5 weeks
c. at most 13 weeks
d. at least 5 weeks

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?

Express the following as a function of a single angle. cos(60) cos(-20) - sin(60) sin(-20)

Miss henderson wants to build a fence around a rectangular garden in her backyard in the scale drawing the perimeter of the garden is 14 in of the actual length of a b is 20 ft how many feet of fencing what you need