Question

I need help with this question

Answer 1

Explanation:

Expression that defines the number of words per minute that an average person can type is,

`W(t)=47-20e^(-0.6t)`

a). For t = 0,

`W(0)=47-20e^(0)`

`W(0)=47-20`

`=27`

b). For w = 1,

`W(1)=47-20e^(-0.6(1))`

`=47-20e^(-0.6)`

`=40-10.98`

`=36.02`

≈
`36`

c). For w = 6,

`W(6)=47-20e^(-0.6(6))`

`=47-20(0.0273)`

`=47-0.55`

`=46.45`

≈
`46.5`

d). For w = 12,

`W(12)=47-20e^(-0.6(12))`

`=47-0.015`

=
`46.985`

≈
`47`