The average credit card debt for college seniors is $3262. If the debt is normally distributed with a standard deviation of $850, what is the probability that a senior would have a credit card debt of more than $2000? FIRST, find the z- score that corresponds to this situation.

Using the quadratic formula find the zeros of the given polynomial -5x^2+3x-11

Ascientist wants to use a model to present the results of his detailed scientific investigation. why would a model be useful? a )because the model makes the concepts easier to understand b) because the model is easy to put together and to use c) because the model prevents other scientists from asking questions d) because the model requires the audience to pay full attention to it i don't know what to choose because between a and d a is much more likely than d because it only wants to get the attention of the audience. i'm confuse.

What is the correct decimal form of 12%