Suppose the warranty period on your family's new computer is about to expire and you are debating about whether to
buy a one-year maintenance contract for $130. If you buy
the contract, all repairs for one year are free. Consumer
information shows that 23% of the computers like yours
require an annual repair that costs $320 on the average.
What is the expected value of buying the maintenance
contract?

expression #3 is not equivalent. the others are.

0.02

step-by-step explanation:

time of 9 192 631 770 periods of the radiation corresponding to the transition between the 2 hyperfine levels of the ground state of the caesium 133 atom at 0 k (but other seconds are sometimes used in astronomy)

false

step-by-step explanation:

the reason i say this is because for a certain length of sides you can pick any two and the length is wither equal or greater than the third side and in this case it's not.

3 + 5 = 8

8 is smaller than 9 which is the third side.

hope this : )