I feel that I can divide the least count into 5 segments. How would I express my uncertainty of this ruler with one significant digit?

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

True or false? a circle could be circumscribed about the quadrilateral below.

What is the quotient of m^6/5 ÷ 5/m^2? assume m does not equal pl