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OpenStudy (anonymous):
Miguel is designing shipping boxes that are rectangular prisms. the shape of one box with height h in feet has a volume defined by the function V(h)=h(h-10)(h-8) what is the domain 0
12 years ago
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OpenStudy (anonymous):
V(h) = h(h - 10)(h - 8)
V(h) = h^3 - 18h^2 + 80h
0 = 3h^2 - 36h + 80
when you use the quadratic formula you get
h = 2.9449495367
--or--
h = 9.0550504633
12 years ago
OpenStudy (anonymous):
V''(h) = 6h - 36
12 years ago
OpenStudy (anonymous):
V''(2.9449495367) = -18.33
V''(9.0550504633) = 18.33
12 years ago
OpenStudy (anonymous):
the maximum volume occurs at h=2.9449495367.
Stick that into V(h) and you get: V(2.9449495367) = 105.0276
your answer would be 105ft^3
12 years ago
OpenStudy (anonymous):
okay!
12 years ago
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OpenStudy (anonymous):
let me know your score ( :
12 years ago
OpenStudy (anonymous):
thank you sooo much!
12 years ago
OpenStudy (anonymous):
100%
12 years ago
OpenStudy (anonymous):
You're welcome !
12 years ago
OpenStudy (anonymous):
if i need help again can i ask you? if you are online.
12 years ago
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OpenStudy (anonymous):
Yep, I'll be on tomorrow. what time is it where you live ?
12 years ago
OpenStudy (anonymous):
10:23 pm
12 years ago
OpenStudy (anonymous):
Lol true. It's 11:23pm here
12 years ago
OpenStudy (anonymous):
lol thanks again!
12 years ago
OpenStudy (anonymous):
Yep. if you need help tomorrow just @ me
12 years ago
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OpenStudy (anonymous):
i might be on tomorrow not sure yet! your awesome! alright good night!
12 years ago
OpenStudy (anonymous):
Night
12 years ago
OpenStudy (anonymous):
11 years ago
OpenStudy (tiredbutradiantt):
TYSM ^^
10 years ago
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