Suppose a is a 3×3 matrix with real entries that has a complex eigenvalue 9−2i with corresponding eigenvector ⎢2−3i, 1−5i⎥. find another eigenvalue and eigenvector for

a.

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%)