Sea level is defined as an altitude of 0 ft. a scuba diver dives into the water and, in 3 min, her altitude drops from 0 ft to −126 ft. what was the diver’s average change in altitude, per minute, for that time period? a. −348 ft b. −42 ft c. 42 ft d. 348 ft

Divide. –40 ÷ –5 a –8 b 200 c -200 d 8

Sanjay solved the equation below. which property did he use to determine that 7x+42=42 is equivalent to 7(x+6)=42 7x+42=42 7x=0 x=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.