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01-05-2014
Mathematics

contestada

if f(x)=3x+7 and g(x)=2x-5 find g(f(-3))

A. -26 B.-9 C. -1 D. 10

Respuesta :

01-05-2014

[tex] f(x)=3x+7 \\ g(x)=2x-5 \\ \\ g(f(-3)) = ? \\ \\f(-3)=3x+7 =3 \cdot (-3)+7=-9+7=-2 \\ \\ g(-2)=2x-5 =2*(-2)-5=-4-5 = -9\\ \\ g(f(-3)) = -9 \\ \\ Answer: \ B.) \ \ -9[/tex]

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