Math the square root with the perfect square 1.1 2.2 3.3 4.4 5.5 6.6 7.7 8.8 9.9 10.10 11.11 12.12 13.13 4 9 100 49 64 36 1 121 16 81 144 169 25

List the elements of the set in roster notation. (enter empty or ∅ for the empty set.) {x | x is a letter in the word hippopotamus}

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?

If tan2a=cot(a+60), find the value of a, where 2a is an acute angle