Question

statistical models predict that price p( in dollars) of a new smartphone will change according to the function p=900-4t^2. where t is the number of months since january. which expression gives the.month t in terms of the price?

Answer 1

E

Explanation:

PLATO

Answer 2

we are given

`p=900-4t^2`

where

price p( in dollars) of a new smartphone

t is the number of months since January

now, we can solve for t

step-1:

Add both sides by 4t^2

`p+4t^2=900-4t^2+4t^2`

`p+4t^2=900`

step-2:

Subtract both sides by p

`p+4t^2-p=900-p`

`4t^2=900-p`

step-3:

divide both sides by 4

`(4t^2)/(4) =(900-p)/(4)`

`t^2=(900-p)/(4)`

`t^2=225-0.25p`

step-4:

Take sqrt both sides

`√(t^2) =√(225-0.25p)`

`t=√(225-0.25p)`

so, we get

`t=√(225-0.25p)`..............Answer