Using the unit circle, what is the exact value of tan pi/6?

Identify an equation in point slope form for the line perpendicular to y=3x+5 that passes through (4,-1)

The area of a circle is equal to 1 dm². find the radius of the circle.

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?