I WILL MARK BRAINLIEST IF YOU ANSWER THIS QUESTION! 1. The height, h, in metres, of a weather balloon above the ground after t seconds
can be modeled by the function h(t) = -2t3 + 3t2 + 149t + 410,0 st 3 10. When is
the balloon at least 980 m above the ground?

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?