#### Answer

$2$

#### Work Step by Step

Formula:
$ad-bc$
$(0*0)-(-1*2)$
$0-(-2)=2$

Published by
Brooks Cole

ISBN 10:
1305071751

ISBN 13:
978-1-30507-175-9

$2$

Formula:
$ad-bc$
$(0*0)-(-1*2)$
$0-(-2)=2$

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