Question

Let p(x)=90/9+50e^-x What is p(3)

Answer 1

p (3) = 7.83

Explanation:

We are given the following expression and we are to evaluate it given that the value of
`p = 3`:

`p ( x ) = \frac { 9 0 } { 9 + 5 0 e^ { - x } }`

Substituting the given value of
`p` to get:

`p ( 3 ) = \frac { 9 0 } { 9 + 5 0 e^ { - 3 } }`

`p ( 3 ) = \frac { 9 0 } { 11.489 }`

`p ( 3 ) = 7.83`

Answer 2

If it is
`p(x)=(90)/((9+50e^(-x)))`, then:
`p(3)=7.83`

If it is
`p(x)=(90)/(9)+50e^(-x)`, then:
`p(3)=12.48`

Explanation:

To solve this exercise you must substiute x=3 into the expression given in the problem.

1) If the expression is
`p(x)=(90)/((9+50e^(-x)))`, you obtain:

`p(3)=(90)/((9+50e^(-(3))))`

`p(3)=7.83`

2) If the expression is
`p(x)=(90)/(9)+50e^(-x)`, you obtain:

`p(3)=(90)/(9)+50e^(-(3))\\p(3)=12.48`