Solve the absolute value equation. Check
for extraneous solutions.
a. |2x + 5 |= 11

Prove sin2a + cos2a - 1 / sin2a + cos2a + 1 = 1 - tana / 1 + cota

Delbert keeps track of total of the total number of points he earns on homework assignments, each of which is worth 60 points. at the end of the semester he has 810 points. write an equation for delbert’s average homework score a in terms of the number of assignments n.

If each bricks costs and he can only buy one brick how much will it cost him to get the material to put around the outside of his garden?