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2 years ago

Evaluate the expression, if x = 9, y = 14, and z = 6. x• y - z^2

Mathematics

2 answers:

alex41 [277]2 years ago

7 0

The answer is 90. Hope this helps

vovikov84 [41]2 years ago

7 0

Answer:

Step-by-step explanation:

Given:

x = 9
y = 14
z = 6

x·y - z² = (9 x 14) - 6²

= 126 - (6 x 6)

= 126 - 36

= 90

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Answer:

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3 years ago

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zaharov [31]

Answer:

$\huge{ \fbox{ \sf{5b + 9}}}$

Step-by-step explanation:

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$\text{Step \: 1 \: : \sf{Remove \: the \: unnecessary \: parentheses}}$

$\text{When \: there \: is \: a \: ( + ) \: in \: front \: of \: an \: expression \: in \: parentheses \:, there \: is \: no \: need \: to \: change \: the \: sign \: of \: each \: term \: in \: the \: expression.}$

$\text{That \: means, \: the \: expression \: remains \: the \: same. \: Just \: you \: have \: to \: remove \: the \: parentheses.}$

$\mapsto{ \sf{3b + 5 + 2b + 4}}$

$\text{Step \: 2 \: : Collect \: like \: terms.}$

$\text{Like \: terms \: are \: those \: which \: have \: the \: same \: base.}$

$\mapsto{ \sf{3b + 2b + 5 + 4}}$

$\mapsto{ \sf{5b + 5 + 4}}$

$\text{ Step \: 3 \: : \sf{Add \: the \: numbers : 5 \: and \: 4}}$

$\mapsto{ \boxed {\sf{ {5b + 9}}}}$

Hope I helped!

Best regards! :D

~ $\sf{TheAnimeGirl}$

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3 years ago

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Answer:

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Good luck!

Intelligent Muslim,

From Uzbekistan.

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2 years ago