Let a be a 5 x 3 matrix, let y be a vector in r3, and let z be a vector in r5. suppose ay = z. what fact allows you to conclude that the system ax = 5z is consistent?

Step by step approach is as shown

Step-by-step explanation:

recalling from commutative law that A + B = B + A and since A is a scalar, and from scalar multiplication of matrix.

answer: a and b

step-by-step explanation:

15%

step-by-step explanation:

use the table and count the number of guesses that has two correct answers.

the following are two correct answers

10010, 01100, 11000

a total of 3 numbers having 2 correct guesses out of 20 questions.

probability of getting 2 correct guesses = the number of questions getting 2 correct answers / total number of questions.

= 3/20

to convert it into percent multiply by 100, we get

= 3/20 * 100

= 15%

the answer is 15%

you.