kinggjames75
kinggjames75 kinggjames75
  • 25-12-2018
  • Mathematics
contestada

if k(x) = 2x-3x then k(9) is. A.315 B.307 C.159 Or D.153 show work plzz thanks

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wegnerkolmp2741o
wegnerkolmp2741o wegnerkolmp2741o
  • 25-12-2018

Answer:

none of the solutions

Step-by-step explanation:

if k(x) = 2x-3x

We can substitute x=9 to find k(9)

k(9) = 2(9) -3(9)

      = 18 -27

      = -9

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legiuitorul
legiuitorul legiuitorul
  • 25-12-2018
k(x)= 2x-3x

k(9)= 2•9-3•9
k(9)= 18-27
k(9)= -9

answer: none of the above
Answer Link

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