It's 5 because the fraction when you divide. 23.
Answer:
30 I think. The bird house is 45 so minus 15 you get 30
The dimensions of the matrix are 3 by 3 i.e. 3 x 3, and the indicated element a₂₃ is -7
<h3>The dimension of the matrix?</h3>
From the figure in the question, we have the following highlights:
- The matrix has 3 rows
- The matrix has 3 columns
The dimensions of a matrix are represented by: Row by column
Hence, the dimensions of the matrix are 3 by 3
<h3>The indicated element</h3>
This is given as:
a₂₃
This means that the element is located at the second row and the third column.
The element at this position is -7
Hence, the indicated element is -7
Read more about matrix at:
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2400 is 8x3x100
48 is 8x3x2
--------------
(8x3x100 miles)/(8x3x2 hours)
=(100 miles)/(2 hours)
=50 mph
This is how
1. Write your 3 x 3 matrix. More ↓
<span>2. Choose a single row or column. </span>↓
<span>3. Cross out the row and column of your first element. </span>↓
<span>4. Find the determinant of the 2 x 2 matrix. </span>↓
<span>5. Multiply the answer by your chosen element. </span>↓
<span>6. Determine the sign of your answer. </span>↓
<span>7. Repeat this process for the second element in your reference row or column. </span>↓
<span>8. Repeat with the third element. </span>↓
<span>9. Add your three results together. </span><span>↓
</span>
Hope this helps!
