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Melody

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WELCOME BACK CPHILL !


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Melody  Feb 11, 2022
 #395
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+8

@@ End of Day Wrap     Fri 9 /1/15     Sydney, Australia       Time 9:55pm       ♪ ♫

 

Hi all,

 

Lots of great answers the last 2 days from Heureka, CPhill, Geno3141, Oboeduck, Shaniab29544, Nadvera, usiu96, YourAssassin, Hussein101, Alan, Tetration, VampireYuki and Sangyun.  A big thankyou to each of you. 

 

Interest posts:

 

1) Using Gyazo (there are other similar prgrams available if you prefer) - Good info for all levels

http://web2.0calc.com/questions/list-function

2) Puzzle probability question - Always a good one - Thanks Geno

http://web2.0calc.com/questions/suppose-you-re-on-a-game-show-and-you-re-given-the-choice-of-three-doors-behind-one-door-is-a-car-behind-the-others-goats-you-pick-a-do

3) Inverse functions  Thanks Gino

http://web2.0calc.com/questions/g-x-1-2-x-8-g-x-__________-how-do-i-writ-an-equation-for-the-inverse-of-the-function

4) Number Puzzle - Anon's answer requires more brain power than I possess right now.  Thanks CPhil and anon 1 and 2 

http://web2.0calc.com/questions/how-do-i-get-60-using-7-numbers-under-20-only-using-a-number-once

5) Another to consider - Binomial expansion  Thanks Geno.

http://web2.0calc.com/questions/with-how-many-zeros-does-11-100-1-end-explain-with-binomial-theorem

6) A simple but veery important convention for everyone.

Can a sqrt be negative? Great for younger students

http://web2.0calc.com/questions/what-are-the-different-square-roots-of-49

7) Simplifying radicals - for the younger set :)   Thanks Geno

http://web2.0calc.com/questions/the-square-root-of-90-times-the-square-root-of-14-times-the-square-root-of-70

8) Exponential decay     Thanks Chris and Anon

http://web2.0calc.com/questions/a-hiker-in-africa-discovers-a-skull-that-contains-63-of-its-original-amount-of-c-14-find-the-age-of-the-skull-to-the-nearest-year-using-e

*9, 10, 11 &12)  Floor and ceiling functions.  I have included all these in "great answers to learn from".

Thanks Chris

http://web2.0calc.com/questions/need-help-on-this-a-lot-thanks

http://web2.0calc.com/questions/find-all-values-of-nbsp-nbsp-such-that-nbsp-if-you-find-more-than-one-value-then-list-the-values-you-find-in-increasing-order-separated

http://web2.0calc.com/questions/let-nbsp-evaluate-this-sum-has-1000-terms-one-for-the-result-when-we-input-each-integer-from-1-to-1000-into-nbsp

http://web2.0calc.com/questions/the-function-nbsp-nbsp-is-defined-as-find-nbsp

13) Function question for younger students

http://web2.0calc.com/questions/the-function-nbsp-nbsp-is-defined-for-nbsp-nbsp-as-follows-find-all-real-numbers-nbsp-nbsp-such-that-nbsp-nbsp

*14)  This result is really weird graph.  It is a degenerate conic. It has degenerated into two cross lines.    

I have included this in "great answers to learn from".   Thanks Chris  

http://web2.0calc.com/questions/how-do-you-solve-this-please-help-me-2x-2-3y-2-5xy-and-3x-y-5

 

                   ♫♪  ♪ ♫                                ♬ ♬ MELODY ♬ ♬                                 ♫♪  ♪ ♫

Jan 9, 2015
 #206
avatar+118735 
0

Sat 10/1/14

1) Limit 

http://web2.0calc.com/questions/calculus-of-a-limit

2) A Heureka Special.     Thanks reinout and Heureka   

http://web2.0calc.com/questions/equation_19

3) This inverse function one gave me and Chris a headache.  LOL

 http://web2.0calc.com/questions/please-help_65

 

                   ♫♪  ♪ ♫                                ♬ ♬ MELODY ♬ ♬                                 ♫♪  ♪ ♫

Jan 9, 2015