brianaspence08 brianaspence08
  • 04-05-2020
  • Mathematics
contestada

Evaluate.

Find (f ∙ g)(3) given f(x) = x - 5 and g(x) = -4x2 + 11x + 5.

A.-248

B.16

C.-94

D,-4

Respuesta :

benlupsa25
benlupsa25 benlupsa25
  • 04-05-2020
B because I did the math and it’s b
Answer Link
ItzMikeSS
ItzMikeSS ItzMikeSS
  • 04-05-2020

Answer: D) -4

Step-by-step explanation:

[tex]f(x)=x-5\\g(x)=-4x^2+11x+5[/tex]

[tex](f*g)(3)=(x-5)(-4x^2+11x+5)\\(f*g)(3)=(3-5)(-4(3)^2+11(3)+5)\\(f*g)(3)=(-2)(-4*9+33+5)\\(f*g)(3)=(-2)(-36+38)\\(f*g)(3)=(-2)(2)\\(f*g)(3)=-4[/tex]

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