If you are asking to simplify, this is what I got. Hope I was able to help
The lowest common denominator is 21
Answer:
The answer is,

Step-by-step explanation:
The given product is,

= 
---------------------(1)
Now, the first product to compare is,

= - 0.25 ----------------------------(2)
The second product to compare is,

= 0.5 ------------------------(3)
The 3rd product to compare is,

= 3 ----------------------------(4)
The 4th product to compare is,

= 
= 0.05625 -----------------(5)
Comparing all the values , we get (3) is closest to (1).
Hence, we get, the answer is,

(a^3 - 2a + 5) - (4a^3 - 5a^2 + a - 2)
=a^3 - 2a + 5 - 4a^3 + 5a^2 - a + 2
= -3a^3 + 5a^2 - 3a + 7
Answer:
50
Step-by-step explanation:
Image result for triangular coordinates definition
Image result for triangular coordinates definition
With the triangular coordinate system, you can visualize the relationships between the components in a three-component mixture. ... Any points along the edges of the triangle represent blends where one of the components is absent.