powerbrent92 powerbrent92
  • 14-04-2020
  • Mathematics
contestada

If f(x) = 1/3x^2 + 5, find f(-9).
A. 248
B. -22
C. 11
D. 32

Respuesta :

PunIntended
PunIntended PunIntended
  • 14-04-2020

Answer:

D. 32

Step-by-step explanation:

For this problem, we simply plug -9 in for x in f(x):

[tex]f(x)=\frac{1}{3} x^2+5[/tex]  ⇒  [tex]f(9)=\frac{1}{3} *(9^2)+5=\frac{1}{3} *81+5=27+5=32[/tex]

Thus, the answer is D. 32.

Hope this helps!

Answer Link
amna04352
amna04352 amna04352
  • 14-04-2020

Answer:

D. 32

Step-by-step explanation:

f(-9) = ⅓(-9)² + 5

⅓(81) + 5

27 + 5

32

Answer Link

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