Jake wanted to measure the height of the great sphinx of giza. he placed a mirror on the ground and then walked backwards until he was able to see the top of the statue in the mirror. if his eyes were 5.5 feet above the ground, how tall is the statue, to the nearest foot?

a. 65 ft
b. 87 ft
c. 103 ft
d. 137 ft

At a kentucky friend chicken, a survey showed 2/3 of all people preferred skinless chicken over the regular chicken. if 2,400 people responded to the survey, how many people preferred regular chicken?

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?

What is the distance from zero if a quadratic function has a line of symmetry at x=-3 and a zero at 4