The model for the glass building below has a scale factor of 2 inches for every 9 yards in actual length.
The ratio of the surface areas is . If the surface area of the windows of the model is 100 square inches, the surface area of the windows of the building is square yards.
4 inches squared:81 yards squared 4,250
2 inches squared:9 yard squared 2
2,025
450

Item 1 solve for s. s+24=90 −114 −66 66 114

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?

Point a (7,3) is translated to a'(16,-9). which rule describes the translation?