1. consider the following matrix 1 2 1 4 0 a = -2 3 0 1 2 4 1 2 2. 1 find a basis for its null space and a basis for its column space. what is the rank and nullity of the matrix? what is rank(a)+nullity(a)?

Each of the four sides of a swimming pool measures 9 meters. the pool is 5 meters deep. how much water will be needed to fill it completely? a. 45 cubic meters b. 81 cubic meters c. 225 cubic meters d. 405 cubic meters reset next

Write an algebraic expression to match each statement a. four less than 8 times a number b. twice the difference of a number and six c. nine from a number squared

Determine which postulate or theorem can be used to prove that lmn =nmo