Which proportion can be used to solve the following percent problem? what is 50% of 70?

If value of cos330° is √3/2 then find tan165°.

Graph the system of inequalities presented here on your own paper, then use your graph to answer the following questions: y > 2x + 3y is less than negative 3 over 2 times x minus 4part a: describe the graph of the system, including shading and the types of lines graphed. provide a description of the solution area. (6 points)part b: is the point (â’4, 6) included in the solution area for the system? justify your answer mathematically. (4 points)

Which of the following vectors are orthogonal to (2,1)? check all that apply