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When would one flip the inequality sign? 2014-01-09
Natasha pose la question :
Would one flip the inequality symbol in this equation: (explain why) (-9a)/(-9) > 81
And please explain in what circumstances one would flip the inequality sign
THANKS!

Penny Nom lui répond.
Flipping a cone over 2011-01-17
Fionna pose la question :
The height of your cone is "x". Holding the cone so that the vertex is at the bottom, fill it half full with water. The depth of the water is "1/2x". Put a lid over the top, and flip it over. What is the new depth of the water, now that the cone is flipped?
Penny Nom lui répond.
Flipping a coin 2006-06-08
John pose la question :
If a coin is flipped n times, where H is the number of heads after n flips, and T the number of tails, then will the quantity (H-T) change signs infinitely often as n goes to infinity?
Chris Fisher lui répond.
Why do you flip the inequality sign? 2001-10-26
Sean pose la question :
I have a question about an inequality problem. Here it is: Solve and graph 5 - 3x => 17. (=> is greater than or equal). Please tell me why you flip the inequality sign when divinding by a negative number.
Penny Nom lui répond.
 
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