Abox in a certain supply room contains six 40-w lightbulbs, four 60-w bulbs, and three 75-w bulbs. suppose that three bulbs are randomly selected. (round your answers to four decimal places.) (a) what is the probability that exactly two of the selected bulbs are rated 75-w

41/2 - 1 1/3 what is the answer as a fraction?

An ulcer medication has 300 milligrams in 2 tablets. how many milligrams are in 3 tablets?

1- 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. 2- 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. 3- 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 part b?