  Math Central - mathcentral.uregina.ca  Quandaries & Queries    Q & Q    Topic: minus   start over

8 items are filed under this topic.    Page1/1            Investigating y = (-2)^x 2020-01-13 From Gonzalo:This is not precisely a maths question, but it is formulated based on my maths curiosity. Fidgetting with my new graphic calculator, I started graphing things and had the idea to graph \$y=(-2)^x.\$ The result surprised me, and I thought a little bit about it, stored it on the back of my brain, and promised myself to look deeper into it someday.Answered by Harley Weston.     What is -5 squared? 2019-09-10 From Pori:What is -5 squared?Answered by Penny Nom.     A negative minus a negative 2019-09-03 From Maggie:Why is a negative minus a negative a negative?Answered by Penny Nom.     An inequality 2014-01-25 From LANELL:this is a problem to solve: 1/3 + 2/7 >=x/21 -- part of the answer is (-oo) not exactly that similar--it is on a calculator as a symbol- sure you know what it is I am talking about- the x will be a numberAnswered by Penny Nom.     A negative times a negative 2010-03-25 From priya:why is minus into minus plus?Answered by Harley Weston.     -log(a) 1999-10-22 From Brenda Miskimmin:I need to know the mercury concentration in mg/L or ng/L for the following: -log M (Hg) = 8.5 where mw of Hg=200.59 (it's the negative sign in front of log that confuses me).Answered by Harley Weston.     A double negative 1999-09-01 From Dennis:If b = -2 what does -b = ? As in (a + 8.5) - [(-b) + |c|] a = 1.5, c = -1.7Answered by Penny Nom.     (-3)x(-2) 1995-10-25 From Azmat:Why is (-3)x(-2) = 6?Answered by Herley Weston and Ed Giesbrecht.      Page1/1    Math Central is supported by the University of Regina and The Pacific Institute for the Mathematical Sciences.    about math central :: site map :: links :: notre site français