If the area of a rectangle is represented by the expression 5x^2 + 19x +12, find the perimeter expression.

The diameter of a table is 5 feet. what is the circumference

Find the exact value of each of the following. in each case, show your work and explain the steps you take to find the value. (a) sin 17π/6 (b) tan 13π/4 (c) sec 11π/3

For the sequence [tex]a_{n} = 2n/(n+1)[/tex], what is the value of [tex]a_{10}[/tex]