A leatherback sea turtle was swimming at 850 meter below sea level. He went up 165 meters and then descended 165 meters. Represent it on a number line

Solve the equation 3x2 + 19x + 9 = 0 to the nearest tenth.

Segment xz is bisected by point y. if xy = 12x, and the measure of xz = 18x – 6, solve for x

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?