The second degree polynomial with leading coefficient of -2 and root 4 with multiplicity of 2 is:

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How to write the polynomial?</h3>
A polynomial of degree N, with the N roots {x₁, ..., xₙ} and a leading coefficient a is written as:

Here we know that the degree is 2, the only root is 4 (with a multiplicity of 2, this is equivalent to say that we have two roots at x = 4) and a leading coefficient equal to -2.
Then this polynomial is equal to:

If you want to learn more about polynomials:
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Answer:
9, 9.5,9.551,9.59,9.626,9.66,9.662
Step-by-step explanation:
Ali must wear a totally ginormous shirt !
To find the perimeter, you add up all the sides.
11 + 5 + 13 = 29
29 inches is the perimeter.