Una matriz cuadrada A se denomina idempotente si A2=A, y una matriz cuadrada C se denomina involutiva si C2=I, donde I es la matriz identidad. Demuestre que si A es idempotente, entonces C=2A−I es involutiva.

the smallest possible measurement of the width is 14 feet

step-by-step explanation:

let's assume length of parallelogram is 'l'

width of parallelogram is 'w'

the perimeter of a parallelogram must be no less than 40 feet

so, we get

we are given

length of parallelogram is 6 feet

so,

l=6

we can plug it

now, we can solve for w

subtract both sides by 12

divide both sides by 2

and we get

so,

the smallest possible measurement of the width is 14 feet

answer for #1 is c

answer for #2 is d

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it has changed from the width and the height.

step-by-step explanation:

answer: what are the following choices