Find the sum and express it in simplest form.
(-3n^3 - 3n^2 - 5) + (8n^3 + 6n^2 - 4)

5n^3+3n^2-9

Step-by-step explanation:

you only add the coefficients

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