Given: circumscribed abcd, ab=5,
ad=8, cd=10.
find: bc

5,600 x 10^3 = a) 560 b) 5,000,600 c) 5,600,000 d) 56,000

Monthly water bills for a city have a mean of $108.43 and a standard deviation of $32.09. find the probability that a randomly selected bill will have an amount greater than $155, which the city believes might indicate that someone is wasting water. would a bill that size be considered unusual?

Is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis.