Une a sky chart to the heay express the w ine anderal notation express the answer in the quality notation select the correct choice below and in the boxes to rende your choice

Sam claims that cos x =sin y if x and y are congruent angels. is sam correct ?

Evaluate the discriminant of each equation. tell how many solutions each equation has and whether the solutions are real or imaginary. x^2 + 4x + 5 = 0

Astudent must have an average on five test that is greater than it equal to 80% but less than 90% to receive a final grade of b. devon's greades on the first four test were 78% 62% 91% and 80% what range if grades on the fifth test would give him a b in the course? ( assuming the highest grade is 100%)