Hardest one ive posted
answer all of them from 1 to 7

An objects motion is described by the equation d= 4sin (pi t) what will the height of the object be at 1.75 seconds?

What is not true about kl and mn? what is mn? (show your work)

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?