Respuesta :

It should be -101. Just plug in 9 into x so it would be like f(9)= 9^2-20. Which equals -101
sqdancefan

Answer:

  -101

Step-by-step explanation:

Put 9 where x is, and do the arithmetic.

  f(x) = -x² -20

  f(9) = -9² -20 = -81 -20

  f(9) = -101

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