Which example shows simplifying variable expressions using associate property of addition? 2(3x - 6) = 6x - 12

4x + 9 + x + 6 = 5x + 15

(4x + 3) + 6x = (4x + 6x) + 3 = 10x + 3

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?

Janet is rolling a number cube with the numbers one through six she record the numbers after each row if she rolls of keep 48 times how many times should she expect to roll a 4

5. (03.02)if g(x) = x2 + 3, find g(4). (2 points)1619811