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fgiga [73]
4 years ago
15

I suck at this, does anyone know?

Mathematics
1 answer:
Helga [31]4 years ago
3 0
For a 2x2 matrix, the determinant is the absolute value of ad-bc
in this case, a=4, b=-7, c=3, d=-2
4*(-2)=-8
-7*3=-21
-8-(-21)=13
so the answer is D

refer to this website for details:
https://www.mathsisfun.com/algebra/matrix-determinant.html


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