90% as a decimal is .9 and then as a fraction in simplest form is 9/10
Hope it helps
The fraction of the image in blue with respect to the <em>entire</em> hexagon is 
.
<h3>
Estimation of the ratio of the shaded region area to the entire area</h3>
Initially we proceed to create auxiliar constructions , represented by red line segments, to re-define the hexagon as a sum of standard figures. According to the figure, we find two types of triangles (type-1 and type-2), and the following relationship between the two types:
(1)
Where:
- Area of a type-1 triangle.
- Area of a type-2 triangle.
The formulae for the area of the shaded region (
) and the <em>entire</em> hexagon (
) are, respectively:
<h3>Shaded region</h3>
(2)
<h3>Entire hexagon</h3>
(3)
And the fraction of the image in blue is:
The fraction of the image in blue with respect to the <em>entire</em> hexagon is . 
To learn more on hexagons, we kindly invite to check this verified question: brainly.com/question/4083236
Answer: 3 × 1/ 10 is not less than 3 × 10
Step-by-step explanation:
Because 3 × 1 / 10 is (0. 3) and 3 × 10 is (30) they are equivalent.
The union and intersection of the sets is given as { -4, -9 , 19} and { -4} respectively.
<h3>What is a set?</h3>
A set is simply a mathematical model for a collection of different things which could be elements or members.
Union of sets represented with '∪' is the combination of two sets without repetition
Intersection of sets represented with '∩' is the sum of elements common between the.
From the expression given, we have;
[-9,-4] U (-4, 19)
= { -4, -9 , 19}
[-9,-4] U (-4, 19)
= { -4}
Thus, the union and intersection of the sets is given as { -4, -9 , 19} and { -4} respectively.
Learn more about sets here:
brainly.com/question/2166579
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