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Hi;
Hi Bob:
Sorry, that is the one I meant. The equation is right but the roots are obviously not. Like I said the ball can not possibly hit the ground in one second so you know something is wrong. The quadratic formula can be a little tricky.
hi demha,
Actually it is the last one:
Hi; as you said? You know that neither of those answers make any sense. How could the ball hit the ground in 1 second? So either you picked the wrong equation or you did not solve it correctly. Answers in math ought to make sense. Mine don't but that is only because I work on nonsense.
My class shows me how to do #15, this website shows the exact same thing: since I can't post links, search on Google: Using Quadratic Formula to Find the Zeros of a Polynomial and click the first link.
hi demha,
Alright, let me try that my self and please do tell any mistakes I make along the way. I will also try #15.
Your teacher is not correct but if he/she wants to say you are right then let's leave it alone for now.
The correct equation is,
Hi anonimnystefy,
Can't be one positive and one negative.
13) says integers...
Hi;
Hi bobbym 