The turf of a sports field is slightly shaped like a parabola so that rainwater can easily drain off the field. The field is modeled by the function f(x)= -0.00025(x-100)^2 + 2.5, where f(x) is the height of the field x feet from the field’s leftmost edge. What is the width of the field?

You paint a 1/2 of a wall in 1/4 hour. how long will it take you to paint one wall

Will possibly give brainliest and a high rating. choose the linear inequality that describes the graph. the gray area represents the shaded region. 4x + y > 4 4x – y ≥ 4 4x + y < 4 4x + y ≥ 4

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?