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  • 27-02-2018
  • Mathematics
contestada

Evaluate g(x) = 0.023x^3 + 0.4x^2 − 2.1x + 8.3 for x = 2 and x = 4.

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penfila11Pen
penfila11Pen penfila11Pen
  • 27-02-2018
g(x) = 0.023x³ + 0.4x² - 2.1x + 8.3

for x = 2
g(2) = 0.023(2)³ + 0.4(2)² - 2.1(2) + 8.3
       = 0.184 + 1.6 - 4.2 + 8.3
       = 5.884

for x = 4
g(4) = 0.023(4)³ + 0.4(4)² - 2.1(4) + 8.3
       = 1.472 + 6.4 - 8.4 + 8.3
       = 7.772

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