Consider the following Gauss elimination: A→⎡⎣⎢100010−101⎤⎦⎥E 1A→⎡⎣⎢1000−50001⎤⎦⎥ E2E1A→⎡⎣⎢10001000−4⎤⎦⎥ E3E2E1A→⎡⎣⎢100001010⎤⎦⎥ E4E3E2E1A=⎡⎣⎢−400−5208−5−1⎤⎦⎥ A→[10−1010001]⏟E1A→[1000−50001]⏟E2E 1A→[10001000−4]⏟E3E2E1A→[100001010] ⏟E4E3E2E1A=[−4−5802−500−1] What is the determinant of AA

1. are the triangles similar and if so why? what is the value of x? show your work.

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The dash figure is a dilation if the original figure. find the scale factor. classify the dilation as an enlargement or a reduction