D) 223 even though you didnt list the answer choices.
The matrix is a 2 by 2 matrix, and the determinant of the matrix by hand is -3
<h3>How to determine the determinant?</h3>
The matrix is given as:
1 2
2 1
The determinant of the matrix is calculated using the following product expression
det |A| = 1 * 1 - 2 * 2
Evaluate the product
det |A| = 1 - 4
Evaluate the difference
det |A| = -3
Hence, the determinant of the matrix by hand is -3
Read more about matrix at:
brainly.com/question/4505228
Based on the chart, the correct options are:
- The production of coal decreased, while the production of solar increased; option D.
- Solar energy technology has improved and increased in capacity, but coal has decreased in capacity because it is a limited resource; option A
<h3>What is solar energy?</h3>
Solar energy is a type of renewable energy from the sun.
Solar energy is gradually being used to replace non-renewable energy sources such as coal.
Based on the chart:
The production of coal decreased, while the production of solar increased; option D.
Solar energy technology has improved and increased in capacity, but coal has decreased in capacity because it is a limited resource.
In conclusion, solar energy production is increasing.
Learn more about solar energy at: brainly.com/question/9477861
#SPJ1
Is like seeing a family photography with half members missing
I think that it is B, but i'm not sure