Q. A particle travel 270 km in 30 hours. Find the speed of particle in km/hr.
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For how answer my question this will be the last question can you answer in math subject

Atriangle has a side lengths of 18cm, 80 cm and 81cm. classify it as acute obtuse or right?

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?