Find the limit. (let g and h represent arbitrary real numbers. if an answer does not exist, enter dne.) lim x→[infinity] x2 + gx − x2 + hx

If you roll two fair dice (one black die and one white die), in how many ways can you obtain a 4 on at least one die?

Describe in detail how you would construct a 95% confidence interval for a set of 30 data points whose mean is 20 and population standard deviation is 3. be sure to show that you know the formula and how to plug into it. also, clearly state the margin of error.

Which expression is not a polynomial?