After performing a statistical regression on a set of data, the value of the correlation coefficient was -0.8981. What does that imply about the data?

What is coefficient of the term of degree of degree 5 in the polynomial below

Write the sine and cosine values of a, b, respectively, in the figure for (1) and (2) + explanation.

You just purchased two coins at a price of $670 each. because one of the coins is more collectible, you believe that its value will increase at a rate of 7.1 percent per year, while you believe the second coin will only increase at 6.5 percent per year. if you are correct, how much more will the first coin be worth in 15 years?