Answer:
Does exist -- It only exists when the determinant does not equal zero.
Step-by-step explanation:
The inverse of a matrix is the transpose of the cofactor matrix, divided by the determinant. If the determinant is zero, the result of the division is undefined and the inverse does not exist.
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For this matrix, the determinant is (-2)(18) -(9)(4) = -72. The inverse exists.
Answer:
Here are the answer to your question
1. Rhombus
2. Diagonals are congruent
Here is the answer for the rest of the quick check if anyone needs them
3. Diagonals are perpendicular and diagonals are congruent
4. 4
Answer:
4000÷9 the answer it gaves for one you add it to the 4000
Its division and fractions i advise calulater soup
