6. Write the linear inequality shown in the graph. The gray area represents the shaded region.

A. y ≥ –3x + 4

B. y ≥ –3x – 4

C. y ≤ –3x – 4

D. y ≤ –3x + 4

If a and b are the measures of two first quadrant angles and sin a = 4/9 and sin b = 2/5 find sin(a+b).

Suppose the equation ||x-a|-b|=2008 has 3 distinct real roots and a not =0. find the value of b.

Problem number 26 of the rhind papyrus says: find a quantity such that when it is added to of itself the result is a 15. the modern day equation that models this problem is x + x = 15. what is the solution to the equation? x = 10 x = 12 x = 15 x = 30