The probability that an appliance is in repair is 0.8. if an apartment complex has 100 such appliances, what is the probability that at least 90 will be in repair? use the normal approximation to the binomial.

Which of the following is a proper fraction? a. 9⁄8 b. 5⁄6 c. 7⁄3 d. 4⁄2

In the figure shown below, m < 40 and ab =8. which equation could be used to find x?

1- what do you think the product of a nonzero rational number and an irrational number is? is it rational or irrational? make use of variables, the closure property of integers, and possibly a proof by contradiction to prove your hypothesis.2- why do we have to specify that the rational number must be nonzero when we determine what the product of a nonzero rational number and an irrational number is? if the rational number were 0, would it give us the same result we found in the first question?