The formula for density of an object is Density= 
First you plug in the information you already know. 163.5= 
Now you have to solve for the mass so you multiply 0.492 by 163.5 
Lastly, you simplify and you will get 80.44. Hope this helped :)
Write a polynomial, f(x), with degree 5 that has zeros 1, √2, -√2, √3, -√3.
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We know that the perimeter is the all the sides added up together. Generally, you have 
, where l is length and w is width.
For a square, all sides are of the same length, so you can write
, where x is any side.
If the smallest perimeter is 14, then
, so x is 3.5. If the largest perimeter is 72, then 
, so x is 18.
Therefore, you have 3.5 ≤ x ≤ 18.
For a square, all sides are of the same length, so you can write
If the smallest perimeter is 14, then
Therefore, you have 3.5 ≤ x ≤ 18.