Find the measure of the angle. Can someone help? I need to show the work.

Mathematics

1 answer:

kvv77 [185]3 years ago

4 0

The bottom one is 70 the top one is 60 I’m not good at explaining things so sorry if you need it

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Answer:

$\left[\begin{array}{ccc}3&-1&\\-1&1/2\\\end{array}\right]$

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The answer is letter A

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