11. A circle with a radius of 6 cm is enlarged to be a circle with a radius of 15 cm. What scale factor was used to dilate the small circle into becoming the larger circle? a) 0.4 b) 4.5 c) 2.5 d) 9.0

To diagonalize an nxn matrix a means to find an invertible matrix p and a diagonal matrix d such that a pdp d p ap or [1 3 dh epap 3 let a=-3 -5 -3 3 3 1 step 1: find the eigenvalues of matrix a "2's" step 2: find the corresponding eigenvectors of a step 3: createp from eigenvectors in step 2 step 4 create d with matching eigenvalues.