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Jss3 Essential Mathematics The Textbook Failed It. Can You Get It? by Mrshape: 6:04pm On Mar 08, 2021 |
My attention was brought to this question this afternoon. Page 134 Question 9c Can you get it right? DrDre1 Najdorf OSADNA009 ymstar Tobisco247 Idowster Harbidexy5 Epositive zizzley GreatGod2020 nnamdi640 Deffjam Kareayo 95seun bolu96 GeepyEnsemble Leesenpai Frankicent punter9 Investpro14 just4fun LamaNewton Profmaojo ZOLTAN007 Siimjnr03 Elvisanderson Isokoboy yungsmart annie17 ScionOfLight Darivie05 jibrinidris836 smexy shegzy2009 Titidi Martinez39 Stanisbaratheon Oyatz Rezos17 Martinez39s Kylekent59 Fedral9 Brusoj Rexmy Newman20
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Re: Jss3 Essential Mathematics The Textbook Failed It. Can You Get It? by Hashabiah: 6:36pm On Mar 08, 2021 |
I got 61.44. What did you get? |
Re: Jss3 Essential Mathematics The Textbook Failed It. Can You Get It? by Mrshape: 7:58pm On Mar 08, 2021 |
Hashabiah:That's not the answer try again please |
Re: Jss3 Essential Mathematics The Textbook Failed It. Can You Get It? by clockwisereport: 8:59pm On Mar 08, 2021 |
7680 1 Like |
Re: Jss3 Essential Mathematics The Textbook Failed It. Can You Get It? by Hashabiah: 9:10pm On Mar 08, 2021 |
Mrshape:Oga this is mathematics ; show us your method of solution. |
Re: Jss3 Essential Mathematics The Textbook Failed It. Can You Get It? by Mrshape: 9:39pm On Mar 08, 2021 |
clockwisereport:Not correct try again please |
Re: Jss3 Essential Mathematics The Textbook Failed It. Can You Get It? by Hashabiah: 9:49pm On Mar 08, 2021 |
Mrshape:12...what is yours? |
Re: Jss3 Essential Mathematics The Textbook Failed It. Can You Get It? by Mrshape: 9:58pm On Mar 08, 2021 |
Hashabiah:3774.9 2 Likes |
Re: Jss3 Essential Mathematics The Textbook Failed It. Can You Get It? by luv2rolly(m): 10:30pm On Mar 08, 2021 |
Mrshape: You are correct Bro! 2 Likes |
Re: Jss3 Essential Mathematics The Textbook Failed It. Can You Get It? by luv2rolly(m): 10:45pm On Mar 08, 2021 |
The error is from the last part where we have ____ \I R = 15Q² ¯¯¯¯¯ P ____ \I R = 15 × (6.4)² ¯¯¯¯¯¯¯¯¯¯ 10 ____ \I R = 61.44 Now to remove the square root on the left hand side we have to square both sides (and not taken the square roots of which the textbook did, which is wrong) Therefore, R = (61.44)² R = 3774.9 2 Likes |
Re: Jss3 Essential Mathematics The Textbook Failed It. Can You Get It? by Kylekent59: 1:35pm On Mar 09, 2021 |
Mrshape: My answer is 7.8 This is how I got my answer. 4 Likes |
Re: Jss3 Essential Mathematics The Textbook Failed It. Can You Get It? by Kylekent59: 1:38pm On Mar 09, 2021 |
luv2rolly: luv2rolly: 7.8 is the answer. When you are solving any question, you must be vigilant, and observant. |
Re: Jss3 Essential Mathematics The Textbook Failed It. Can You Get It? by federal9: 1:42pm On Mar 09, 2021 |
Lalasticlala, do the needful. |
Re: Jss3 Essential Mathematics The Textbook Failed It. Can You Get It? by Light78: 1:46pm On Mar 09, 2021 |
This should be on Fp. It is educative. Ialasticlala Seun Mynd44 |
Re: Jss3 Essential Mathematics The Textbook Failed It. Can You Get It? by Mrshape: 3:41pm On Mar 09, 2021 |
Kylekent59:You killed mathematics, you almost buried it. But thank God some few people can still think on this forum. I will point out your error. |
Re: Jss3 Essential Mathematics The Textbook Failed It. Can You Get It? by Mrshape: 3:55pm On Mar 09, 2021 |
Kylekent59:Observe the way I squared both side that's how it is supposed to be done. Please learn from it 1 Like
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Re: Jss3 Essential Mathematics The Textbook Failed It. Can You Get It? by clockwisereport: 3:58pm On Mar 09, 2021 |
Mrshape:I've seen my mistake. I solved it with T instead of the square root of R Thanks all the same 1 Like |
Re: Jss3 Essential Mathematics The Textbook Failed It. Can You Get It? by donaytexx1(m): 7:40pm On Mar 09, 2021 |
Mrshape: The correct answer is obviously 7.8 Here is a simplified approach to the problem.
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Re: Jss3 Essential Mathematics The Textbook Failed It. Can You Get It? by Mrshape: 7:54pm On Mar 09, 2021 |
donaytexx1:I shake my head. You took square root of both side to remove square root. I fear who no fear you o. 3 Likes |
Re: Jss3 Essential Mathematics The Textbook Failed It. Can You Get It? by donaytexx1(m): 8:34pm On Mar 09, 2021 |
Mrshape: My brother, I am really embarrassed by that terrible mistake I made. And I guess that was the kind of mistake that the textbook authors made in their solutions. If I had squared both sides (supposed to be done), I would have ended up with the right hand side being all squared, thus eliminating the occurrence of the silly mistake. But instead of squaring both sides, I simply took the square root operator from the left to the right hand side of the equation and, in the process, forgot that it should change from square root to square operator on the right hand side. Please, I was tired and stressed out during the day, and wasn't reasoning straight again. Like you said, one must be very vigilant when solving math. However let me repost my simplified version of the workings with the error corrected. Thanks for pointing out the mistake. But then, pls try to be polite instead of being caustic when doing so next time; no one is above mistakes. Thanks. 2 Likes
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Re: Jss3 Essential Mathematics The Textbook Failed It. Can You Get It? by Mrshape: 8:55pm On Mar 09, 2021 |
donaytexx1:I am sorry for those words I used. it was out of anger. thanks for making the correction it shows you really know what you are doing. 2 Likes |
Re: Jss3 Essential Mathematics The Textbook Failed It. Can You Get It? by donaytexx1(m): 9:26pm On Mar 09, 2021 |
Mrshape: You are welcome, brother. Thanks for your understanding. Keep up the good work. And don't fail to mention me for the next challenge. I'll appreciate it. God bless you. Enjoy. 2 Likes 1 Share |
Re: Jss3 Essential Mathematics The Textbook Failed It. Can You Get It? by cooooooks(m): 12:40pm On Feb 01, 2022 |
I love this thread. We need more teachers and school owners or operators like MrShape and the other participants! |
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