If r is a linear function with a slope that is not equal to zero, which of the following is always true of its inverse function? its slope is the negative reciprocal of the slope of r. its slope is the reciprocal of the slope of r. its y-intercept is the negative reciprocal of the y-intercept of r. its y-intercept is the reciprocal of the y-intercept of r.

Farmer dave harvested his corn. he stored 5/9 of his corn in one large silo and 3/4 of the remaining corn in a small silo. the rest was taken to a market to be sold. a. what fraction of the corn was stored in the small silo? 10 points

Which is the equation of an ellipse with directrices at x = ±4 and foci at (2, 0) and (−2, 0)?

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?