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which statement is true about the solution of (picture below)?
a. x = –2 is an extraneous solution, and x = 6 is a true solution.
b. x = 6 is an extraneous solution, and x = –2 is a true solution.
c. both x = –2 and x = 6 are extraneous solutions.
d. both x = –2 and x = 6 are true solutions.

Janie has $3. she earns $1.20 for each chore she does and can do fractions of chores. she wants to earn enough money to buy a cd for $13.50. write an inequality to determine the number of chores, c, janie could do to have enough money to buy the cd.

What dimensions can créate more than one triangle ?

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?