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17-10-2019
Mathematics

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If s(x) = 2 – x2 and t(x) = 3x, which value is equivalent to ( s*f)(-7)

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peachesoneal21 peachesoneal21

18-10-2020

Answer:

-439

(s o t)(x)=s(t(x))

(s o t)(-7)=s(t(-7))

x=-7→t(-7)=3(-7)→t(-7)=-21

(s o t)(-7)=s(t(-7))=s(-21)

x=-21→s(-21)=2-(-21)^2=2-441→s(-21)=-439

(s o t)(-7)=s(t(-7))=s(-21)=-439

-439

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