6/9 and 12/21
i think this is the answer your looking for
<h3> Δ</h3><h3> <u>E</u><u>X</u><u>A</u><u>M</u><u>P</u><u>L</u><u>E</u></h3>
❤
<h3>I hope i can help</h3>
Answer:
you are so bossy be more polite next time
<span>2≤x≤8</span>
<span>−4≤<span>f′</span>(x)≤5</span>
f is continuous in differentable on [2,8] so we know there is c btw 2 and 8 such that
<span><span>f′</span>(c)=<span><span>f(8)−f(2)</span><span>/8−2</span></span></span>
And we know
<span>−4≤<span>f′</span>(c)≤5</span>
=> we have
<span>−4≤ <span><span>f(8)−f(2)</span><span>/8−2</span></span> ≤<span>5</span></span>
<span>5x - 200 = 100
5x = 100+200
5x = 300
</span><span>x = 300/5
x = 60
He has mowed 60 lawns so far.</span>
