The smaller angles on the tan pattern block shown
each measure 30°. How
can you use the angles on
the pattern block to
determine the measure of
the angle shown? Solve
this problem any way you
choose.

Don't know how to find x given these segment lengths

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?

If each bricks costs and he can only buy one brick how much will it cost him to get the material to put around the outside of his garden?