Jeff
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 Apr12 comment What does the term “undefined” actually mean? You might appreciate this video: khanacademy.org/math/algebra2/functions_and_graphs/… Mar2 comment Find the mean from the mode and variance That's certainly what I thought. But the question says the correct answer is 90. It must just be a very poorly designed question. Mar1 asked Find the mean from the mode and variance Jan29 awarded Notable Question Jan29 awarded Famous Question Jan15 awarded Popular Question Jan9 awarded Notable Question Jan8 awarded Yearling Dec14 awarded Popular Question Dec9 awarded Tumbleweed Dec5 comment Triple Integral to Find Volume Note: D.A.Robayo's answer probably most advanced answer, but Mike's was the most basic and didn't use skills that haven't been reached in the textbook yet. Dec5 accepted Triple Integral to Find Volume Dec4 comment Triple Integral to Find Volume Note: Mathematica and Maple say the answer is $16 \pi$. But I still want to know how to do the integral. Dec4 revised Triple Integral to Find Volume added 2 characters in body Dec4 comment Triple Integral to Find Volume We haven't reached the cylindrical part of the text yet. Dec4 comment Triple Integral to Find Volume @D.A.Robayo I put the wrong word when I copied the question. I fixed the post. They want the volume of the solid enclosed by the parabaloids. My bad. Dec4 revised Triple Integral to Find Volume deleted 15 characters in body Dec4 revised Triple Integral to Find Volume deleted 2 characters in body Dec4 asked Triple Integral to Find Volume Dec2 asked Question about the projection of a 3-d region onto the $xz$-plane