Question

An you help me with this problem? ANSWER d), e) and f)

Answer 1

We have the next function

`r(t)=900-35t`

We have a linear function

d) for

`0\le t\le45`

When does the reservoir have the most water

when t=0

e) for

`0\le t\le45`

Let's calculate t when r(t)=0 because it is the value when the reservoir has the least water

`0=900-35t`

we isolate the t

`t=(900)/(35)=25.71`

t=25.71

f)

the inequality is given by the next numbers

r(0)=900-35(0)=900

r(45)=900-35(45)=-675

`-675\le\: r\le900`