Answer
$= 0.45$
Work Step by Step
We plug $x = 0.4$ and $y = -0.3$ into the expression to obtain:
$y^{2} -3xy$
$= (-0.3)^{2} -3(0.4)(-0.3)$
$= 0.09 - 1.2(-0.3)$
$= 0.09 + 0.36$
$= 0.45$
Elementary Algebra
by Kaufmann, Jerome; Schwitters, Karen;
Published by
Cengage Learning
ISBN 10:
1285194055
ISBN 13:
978-1-28519-405-9
Chapter 2 - Real Numbers - 2.4 - Exponents - Problem Set 2.4 - Page 76: 105
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