Consider the following. 3, 23, 8, 15, 28, 13 (a) Double each of your original numbers and compute the standard deviation of this new population. (Round your answer to two decimal place.)

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?

Can you me find the slope! (30 points)

In which direction does the left side of the graph of this function point? a(x) = 3x - x2 + 4x - 2