#### Answer

$< 4,9 > $

#### Work Step by Step

$ < a,b > + < c,d > = < \left( a+b\right) ,\left( c+d\right) > \Rightarrow $
$< -3,5 > + < 7,4 > = < \left( -3+7\right) ,\left( 5+4\right) > = < 4,9 > $

Published by
Pearson

ISBN 10:
013421742X

ISBN 13:
978-0-13421-742-0

$< 4,9 > $

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