Solve with the quadratic equation. Estimate answers to
nearest tenth.

4x² – 12x–9=0

Name the most appropriate metric unit for each measurement like a length of an carrot

Paul’s car is 18 feet long. he is making a model of his car that is 1/6 the actual size. what is the length of the model?

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?