victoriaalexa6 victoriaalexa6
  • 12-03-2018
  • Mathematics
contestada

Let f(x)=81+3e−0.7x .

What is the value of f(−3) ?



Round the answer to the nearest hundredth.

Respuesta :

wifilethbridge wifilethbridge
  • 29-01-2019

Answer:

[tex]f(-3)=91.25[/tex]

Step-by-step explanation:

Given :f(x)=81+3e−0.7x

To Find: Value of f(−3)

Solution:

[tex]f(x)=81+3e−0.7x[/tex]

Putting x = -3

[tex]f(-3)=81+3e−0.7*(-3)[/tex]

[tex]f(-3)=81+3e+2.1[/tex]

[tex]f(-3)=83.1+3e[/tex]

Since the defined value of e = 2.718

⇒[tex]f(-3)=83.1+3*(2.718)[/tex]

⇒[tex]f(-3)=83.1+8.154[/tex]

⇒[tex]f(-3)=91.25[/tex]

Thus the value of [tex]f(-3)=91.25[/tex]

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