How many different keys can be made for a lock that has 8 tumblers with 4 possible heights each?

4^8 does NOT work.

Is there something I am missing?

What should be true about - 5 and 5? Why?

Write the expression as the sine, cosine, or tangent of an angle. sin 57° cos 13° - cos 57° sin 13° Select one: a. cos 70° b. cos 44° c. sin 44° d. sin 70°

When solving a problem involving money, what can a negative number represent?

1/4X^2 - 3/4X^2 = 0 Solve each equation. Factor and use the zero product property to solve. Show all work algebraically.

A-b when a=-4.5 b=0.5

Tyron and his friends go to a movie theater where large tub of popcorn costs $8.25 and a medium soda costs $3.75 tyrone has $30 to spend on popcorn and soda.

Kim sold 20% of the 30 boxes of candy she had to sell. What PART of the candy did Kim sell?

Which would be appropriate compatible numbers to use to estimate (19 4/5) (4/6) A. 16 (1/3) B. 19 (2/3) C. 20 (1/2) D. 20 (1)

According to an airline, flights on a certain route are on time 85 % of the time. Suppose 17 flights are randomly selected and the number of on-time flights is recorded. (a) Explain why this is a binomial experiment.

Is 0.9 0.06 11/20 0.21 greater than 1/2 or smaller