For all matrices c
a11 a12
a21 a22 d where all components aij are
nonzero, show that if a − a21
, then det a − 21 and
a11 − 2a22

The amount of money, in dollars, in an account after t years is given by a = 1000(1.03)^t. the initial deposit into the account was $_^a0 and the interest rate was _a1% per year. only enter numbers in the boxes. do not include any commas or decimal points^t. the initial deposit into the account was $__^a0 and the interest rate is % per year.

What is the perimeter of trapezoid jklm? + units 2 + + units 9 + units 9 + + units

Apublic library wants to place 4 magazines and 9 books on each display shelf. the expression 4s+9s represents the total number of items that will be displayed on s shelves. simplify the expression