A circle with radius of 5 cm sits inside a 11 cm x 11 cm rectangle.
What is the area of the shaded region?
Round your final answer to the nearest hundredth.

2x minus y equals 6, x plus y equals negative 3

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?

14+2 (56-1) this is an arithmetic sequence