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The function Mm = 50 cos( 2:30)) + 50 29. models the percentage M of the full moon visible t days after January 1, 2010. (Hint: Be sure to use Radian mode on your calculator.)1' (a) Graph M over the interval 0 S t S 122. M M 100 SD 60 4D 20 100 100 SI] 80 6|] 60 4|] 40 2|] 20 =ind the days during this interval where 75% of the full moon will be visible. (Enter your answers as a comma-separated list.) Describe the rate oir change and concavity over the interval 0 g f g 15 and expiain what this information means in the context of the situation