In an obtuse triangle, the measures of two angles are 20° and 10°. What is the measure of the third angle?

4. bob solved the inequality problem below incorrectly. explain his error and redo the problem showing the correct answer. −2x + 5 < 17 −2x + 5-5 < 17-5 -2x/-2 < 12/-2 x < -6

Taber invested money in an account where interest is compounded every year.he made no withdrawals or deposits. the function a(t)=525(1+0.05)^t represent the amount of money in the account after t years. how much money did taber origanally invested?

What are the solutions of the equation x4 + 6x2 + 5 = 0? use u substitution to solve.