suijane19
suijane19 suijane19
  • 15-08-2019
  • Mathematics
contestada

What is the answer of this question?

What is the answer of this question class=

Respuesta :

jimrgrant1 jimrgrant1
  • 15-08-2019

Answer:

A

Step-by-step explanation:

f(0) → x < 0, thus

f(0) = 0³ - 2 = 0 - 2 = - 2

f(1) → 1 ≤ x ≤ 2, thus

f(1) = 3(1)² - 4(1) + 5 = 3 - 4 + 5 = 4

f(2) → 1 ≤ x ≤ 2, thus

f(2)= 3(2)² - 4(2) + 5 = 12 - 8 + 5 = 9

Hence

3f(0) - 2f(1) + f(2)

= (3 × - 2) - (2 × 4) + 9

= - 6 - 8 + 9

- 5 → A

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