A star sits at the top of a 27 foot tall Christmas tree. The star is seen by a child who is standing 11 feet away
from the tree. To the nearest degree, what is the angle of elevation from the child to the star?

Iwill give you ! what is the measure of ∠v ?

In a column proof the right column states your reasons

In a test for esp (extrasensory perception), a subject is told that cards only the experimenter can see contain either a star, a circle, a wave, or a square. as the experimenter looks at each of 20 cards in turn, the subject names the shape on the card. a subject who is just guessing has probability 0.25 of guessing correctly on each card. a. the count of correct guesses in 20 cards has a binomial distribution. what are n and p? b. what is the mean number of correct guesses in 20 cards for subjects who are just guessing? c. what is the probability of exactly 5 correct guesses in 20 cards if a subject is just guessing?