The nth term of a sequence is n(n − 1).
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What is the 10th term?

90

Step-by-step explanation:

n=10

n(n-1)=10(10-1) = 10(9)=90

a+9d , a9+d

Step-by-step explanation:

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step-by-step explanation:

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