14-02-2022
Mathematics

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Evaluate when a=4 and b=9: 5ab-b

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14-02-2022

Answer:

171

Step-by-step explanation:

[tex]\tt 5ab-b, \: when\: a=4\: and \:b=9[/tex]

[tex]\tt 5(4)(9)-(9)[/tex]

[tex]\tt \:5\times 4\times 9-9[/tex]

[tex]\tt 180-9[/tex]

[tex]\tt 171[/tex]

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