3 years ago

F(x) = x − 2 and g(x) = x2 − 7x − 9. find f(g(−1)).

1 answer:

4 0

$f(x)=x-2;\ g(x)=x^2-7x-9\\\\g(-1)=(-1)^2-7\cdot(-1)-9=1+7-9=8-9=-1\\\\f(g(-1))=f(-1)=-1-2=-3$

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Answer:

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$\frac{5}{7} \times \frac{14}{20} = \frac{5 \times 14}{7 \times 20}$

It can be also written as -

$= > \frac{5 \times 14}{20 \times 7} = \frac{5}{20} \times \frac{14}{7} = \frac{1}{4} \times 2 = \frac{1}{2}$

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