The ordered pairs in the table represent a linear function.

x f(x)
−2 1
−1 3
0 5
1 7
2 9
what is the value of the function when x = 5?

0 10 15 20

What is the missing constant term in the perfect square that starts with x^2 -20x

How can you construct perpendicular lines and prove theorems about perpendicular lines

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?