Where can we see x and y in the question! This problem cannot be solved!
The volume of the cube given the dimensions of the side length is 
<h3>What is the volume of the cube?</h3>
A cube is a 3-dimensional object that has six faces, twelve edges and eight vertices.
Volume of a cube = a³
Where a = length of a side
(4x² + 3) × (4x² + 3) = 16x^4 + 24x² + 9
(16x^4 + 24x² + 9) × (4x² + 3) = 
To learn more about the volume of a cube, please check: brainly.com/question/26406747
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Hello,
I would be happy to help.
For Part A, you just count the number of terms, there are 3. So, it is a trinomial.
For Part B, you look at the highest exponent value, it is 2. So it is a second degree polynomial.
For Part C, you have to sub in the values for each year. You are looking for the number of years since 1930, so subtract 1930 from each year.
2020 - 1930 = 90
2030 - 1930 = 100
Then, sub in those values into the given expression to find the density.
0.005(90)^2 - 0.127(90) + 1 = 30.07
0.005(100)^2 - 0.127(100) + 1 = 38.3
Remember to use the order of operations!
Good luck,
MrEQ