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Harry_the_cat
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Harry_the_cat
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03-16-2016
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08:17 PM
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Today,
05:46 PM
Harry_the_cat
replied to a thread
Cryptic News?
in
Math Odds & Ends
That threw me. Eleventh element = sodium = Na.
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7 replies | 294 view(s)
Today,
05:43 PM
Harry_the_cat
replied to a thread
2 rebus puzzles
in
Math Odds & Ends
I've seen this one before - it's one of my favourites. But seeing as I wasn't invited to the party :cry:, I'll see how you run.
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17 replies | 185 view(s)
Today,
05:27 PM
Harry_the_cat
replied to a thread
Present value of annuity with payments increasing by 100
in
Finance/Business Math
I noticed above that you used i = 0.0125 which is 0.05/4. Shouldn't it be 0.05/3 as there are 3 lots of "4 months" in a year?? EDIT: Ok forget...
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10 replies | 321 view(s)
Today,
07:28 AM
Harry_the_cat
replied to a thread
Present value of annuity with payments increasing by 100
in
Finance/Business Math
P_1 occurs one time period (ie 4 months) after the "present".
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10 replies | 321 view(s)
Today,
01:44 AM
Harry_the_cat
replied to a thread
Cryptic News?
in
Math Odds & Ends
Has it got the letters NA in it?
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7 replies | 294 view(s)
Yesterday,
11:18 PM
Harry_the_cat
replied to a thread
2 rebus puzzles
in
Math Odds & Ends
Incomplete ballot ?
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17 replies | 185 view(s)
Yesterday,
02:32 AM
Harry_the_cat
replied to a thread
Finding the domain of y = sqrt(3x + 2)
in
Intermediate/Advanced Algebra
I think you meant 9<=x.
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17 replies | 431 view(s)
11-15-2018,
07:21 PM
Harry_the_cat
replied to a thread
Touch Crypt?
in
Math Odds & Ends
Glad to see you are in possession of all your faculties!
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6 replies | 144 view(s)
11-15-2018,
04:06 AM
Harry_the_cat
replied to a thread
Finding the domain of y = sqrt(3x + 2)
in
Intermediate/Advanced Algebra
Your function involved a square root. You can't take the square root of a negative number, so you have to define the domain so that that doesn't...
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17 replies | 431 view(s)
11-15-2018,
03:45 AM
Harry_the_cat
replied to a thread
Touch Crypt?
in
Math Odds & Ends
Lieutenant and copper mixed up in religious sect (4)
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6 replies | 144 view(s)
11-15-2018,
03:41 AM
Harry_the_cat
replied to a thread
Touch Crypt?
in
Math Odds & Ends
* * * * * * * * ** Iron = FE Freakish FACT = anagram of FACT
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6 replies | 144 view(s)
11-15-2018,
12:53 AM
Harry_the_cat
replied to a thread
Finding the domain of y = sqrt(3x + 2)
in
Intermediate/Advanced Algebra
But 3x+2 COULD BE negative. You have to make sure that 3x+2 is NOT negative Ok. So y = \sqrt{3x+2} . If, for example, x=4 then ...
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17 replies | 431 view(s)
11-14-2018,
09:27 PM
Harry_the_cat
replied to a thread
What if Mick Jagger did get satisfaction?
in
Math Odds & Ends
Or what if Bruce was born to walk?
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16 replies | 265 view(s)
11-14-2018,
09:25 PM
Harry_the_cat
replied to a thread
What if Mick Jagger did get satisfaction?
in
Math Odds & Ends
What if Frank didn't do it his way?
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16 replies | 265 view(s)
11-14-2018,
06:57 PM
Harry_the_cat
replied to a thread
Movie crypt
in
Math Odds & Ends
see more
14 replies | 312 view(s)
11-14-2018,
06:35 PM
Harry_the_cat
replied to a thread
What if Mick Jagger did get satisfaction?
in
Math Odds & Ends
And what if the Beatles couldn't work it out?
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16 replies | 265 view(s)
11-14-2018,
05:54 PM
Harry_the_cat
started a thread
What if Mick Jagger did get satisfaction?
in
Math Odds & Ends
And what if Chris de Burgh did pay the ferryman before he got him to the other side?
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16 replies | 265 view(s)
11-14-2018,
05:51 PM
Harry_the_cat
replied to a thread
Beat Crypt?
in
Math Odds & Ends
Sorry, missed that!
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15 replies | 545 view(s)
11-14-2018,
05:47 PM
Harry_the_cat
replied to a thread
Movie crypt
in
Math Odds & Ends
Ahhh! Neither did I, mmm4444bot. So officially you beat me to it!
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14 replies | 312 view(s)
11-13-2018,
06:32 AM
Harry_the_cat
replied to a thread
Proof for Double Angle Formulae in a diagram
in
Geometry and Trig
By "next question" I meant (c).
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5 replies | 235 view(s)
11-13-2018,
04:34 AM
Harry_the_cat
replied to a thread
Proof for Double Angle Formulae in a diagram
in
Geometry and Trig
No 2* here
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5 replies | 235 view(s)
11-13-2018,
04:31 AM
Harry_the_cat
replied to a thread
Proof for Double Angle Formulae in a diagram
in
Geometry and Trig
In my opinion, it's a bit of a silly way to pose the question. Rather than consider cos (theta), consider sin (theta) in triangle ANP. That is...
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5 replies | 235 view(s)
11-12-2018,
11:57 PM
Harry_the_cat
replied to a thread
Easy Crypt?
in
Math Odds & Ends
* * * * * * * * **iron?**
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2 replies | 203 view(s)
11-12-2018,
11:42 PM
Harry_the_cat
replied to a thread
Simple Trig Proof: prove that sin^4θ-cos^4θ=1-2cos^2θ.
in
Geometry and Trig
It might help to recall that a^2-b^2 = (a+b)(a-b) or in particular that a^4-b^4 = (a^2+b^2)(a^2-b^2)
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3 replies | 250 view(s)
11-12-2018,
11:36 PM
Harry_the_cat
replied to a thread
Beat Crypt?
in
Math Odds & Ends
So, is club the answer?
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15 replies | 545 view(s)
11-12-2018,
11:30 PM
Harry_the_cat
replied to a thread
Movie crypt
in
Math Odds & Ends
see more
14 replies | 312 view(s)
11-12-2018,
09:01 AM
Harry_the_cat
replied to a thread
Finding the domain of y = sqrt(3x + 2)
in
Intermediate/Advanced Algebra
Basically, the domain is the set of values that x can take, so that the function is defined. For the function y =\sqrt{3x+2} to be defined, then...
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17 replies | 431 view(s)
11-12-2018,
08:56 AM
Harry_the_cat
replied to a thread
Big matrix with a column of zeros
in
Intermediate/Advanced Algebra
Possibly a misprint in the question. Maybe it's meant to have a 5th column. Who knows! Just one other thing … you said that "If I remove it, then...
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5 replies | 223 view(s)
11-12-2018,
07:59 AM
Harry_the_cat
replied to a thread
Question for mmm444bot and Denis
in
Math Odds & Ends
Oxford dictionary definition 1.2: "A person who behaves in a mechanical or unemotional manner" ??
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5 replies | 256 view(s)
11-12-2018,
07:29 AM
Harry_the_cat
replied to a thread
Big matrix with a column of zeros
in
Intermediate/Advanced Algebra
The determinant of a matrix is only defined for square matrices (ie same number of rows and columns). The matrix in the question is NOT a square...
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5 replies | 223 view(s)
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