Alright, for all you math geeks. I was helping my son with his math homework, and this was one of his problems. I thought it was simple enough. Use the Pythagorean theorem, to find the answer, right? Apparently not. Teacher and answer book said I was wrong. Please show me why I'm wrong. Here it is.
Estimate the length of a square table with a diagonal length of √119 feet to the nearest whole number.
Simple math problem?
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RickD
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Simple math problem?
John 5:24
24 “Truly, truly, I say to you, he who hears My word, and believes Him who sent Me, has eternal life, and does not come into judgment, but has passed out of death into life.
“A nation of sheep will beget a government of wolves.”
-Edward R Murrow
St. Richard the Sarcastic--The Patron Saint of Irony
24 “Truly, truly, I say to you, he who hears My word, and believes Him who sent Me, has eternal life, and does not come into judgment, but has passed out of death into life.
“A nation of sheep will beget a government of wolves.”
-Edward R Murrow
St. Richard the Sarcastic--The Patron Saint of Irony
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Ivellious
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Re: Simple math problem?
One would think the Pythagorean Theorem would work. I help my younger brothers and always get bothered by the "estimate the answer" problems because they have some weird way of coming with with the "right" estimates. Does the book or teacher give some different way of estimating these answers? Because otherwise, to me, I would think your line of thought is fine.
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RickD
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Re: Simple math problem?
No, the book just gives the answer as "11". Now, the diagonal of the square table, √119, is 11, when rounded to the nearest whole number. But, the problem is looking for the length of a side of the square, which is 8, when rounded to the nearest whole number.Ivellious wrote:One would think the Pythagorean Theorem would work. I help my younger brothers and always get bothered by the "estimate the answer" problems because they have some weird way of coming with with the "right" estimates. Does the book or teacher give some different way of estimating these answers? Because otherwise, to me, I would think your line of thought is fine.
John 5:24
24 “Truly, truly, I say to you, he who hears My word, and believes Him who sent Me, has eternal life, and does not come into judgment, but has passed out of death into life.
“A nation of sheep will beget a government of wolves.”
-Edward R Murrow
St. Richard the Sarcastic--The Patron Saint of Irony
24 “Truly, truly, I say to you, he who hears My word, and believes Him who sent Me, has eternal life, and does not come into judgment, but has passed out of death into life.
“A nation of sheep will beget a government of wolves.”
-Edward R Murrow
St. Richard the Sarcastic--The Patron Saint of Irony
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Ivellious
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Re: Simple math problem?
I would have your kid ask for an explanation from the teacher on that one, because unless I'm just totally reading that wrong, the book has an error in it.
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RickD
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Re: Simple math problem?
He's going to ask the teacher tomorrow. I can't see what I'm missing. I posted the question exactly like his book says. And, the whole chapter is on the Pythagorean theorem.Ivellious wrote:I would have your kid ask for an explanation from the teacher on that one, because unless I'm just totally reading that wrong, the book has an error in it.
John 5:24
24 “Truly, truly, I say to you, he who hears My word, and believes Him who sent Me, has eternal life, and does not come into judgment, but has passed out of death into life.
“A nation of sheep will beget a government of wolves.”
-Edward R Murrow
St. Richard the Sarcastic--The Patron Saint of Irony
24 “Truly, truly, I say to you, he who hears My word, and believes Him who sent Me, has eternal life, and does not come into judgment, but has passed out of death into life.
“A nation of sheep will beget a government of wolves.”
-Edward R Murrow
St. Richard the Sarcastic--The Patron Saint of Irony
-
Ivellious
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Re: Simple math problem?
Well, math textbooks do tend to have occasional errors or typos in them. And if it's only one problem, I wouldn't worry too much. Let me know what he finds out, because I'm gonna feel stupid until I find out how to get that answer haha.
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RickD
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Re: Simple math problem?
I'm going to feel stupid, as well, because I told my son that I'm 100% sure I'm right.Ivellious wrote:Well, math textbooks do tend to have occasional errors or typos in them. And if it's only one problem, I wouldn't worry too much. Let me know what he finds out, because I'm gonna feel stupid until I find out how to get that answer haha.
If I hear tomorrow, I'll post the answer.
John 5:24
24 “Truly, truly, I say to you, he who hears My word, and believes Him who sent Me, has eternal life, and does not come into judgment, but has passed out of death into life.
“A nation of sheep will beget a government of wolves.”
-Edward R Murrow
St. Richard the Sarcastic--The Patron Saint of Irony
24 “Truly, truly, I say to you, he who hears My word, and believes Him who sent Me, has eternal life, and does not come into judgment, but has passed out of death into life.
“A nation of sheep will beget a government of wolves.”
-Edward R Murrow
St. Richard the Sarcastic--The Patron Saint of Irony
Re: Simple math problem?
The book is wrong, you are right. It is that simple.
Let us proclaim the mystery of our faith: Christ has died, Christ is risen, Christ will come again.
Lord I am not worthy that you should enter under my roof, but only say the word and my soul shall be healed.
Lord I am not worthy that you should enter under my roof, but only say the word and my soul shall be healed.
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RickD
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Re: Simple math problem?
The book had the wrong answer. I'm so happy that I'm able to do 7th grade math. 
John 5:24
24 “Truly, truly, I say to you, he who hears My word, and believes Him who sent Me, has eternal life, and does not come into judgment, but has passed out of death into life.
“A nation of sheep will beget a government of wolves.”
-Edward R Murrow
St. Richard the Sarcastic--The Patron Saint of Irony
24 “Truly, truly, I say to you, he who hears My word, and believes Him who sent Me, has eternal life, and does not come into judgment, but has passed out of death into life.
“A nation of sheep will beget a government of wolves.”
-Edward R Murrow
St. Richard the Sarcastic--The Patron Saint of Irony
-
Zionist
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Re: Simple math problem?
you were nervous there for a moment huh Rick? probably thinking i know i got the answer right....i hope i got it right...please let it be right lol
lolOur rightousness is of filthy rags and in the eyes of God all have gone astray and nobody is justified under the Law. We are saved by the Grace of God through our faith in Him and in Him who he has sent Jesus Christ alone. There is no other way.
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RickD
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Re: Simple math problem?
Actually, I had complete confidence that I had the correct answer. After my son told me that the teacher said my answer was wrong, I did the problem a few more times, just to make sure. it was as simple as 2x2= 16.Zionist wrote:you were nervous there for a moment huh Rick? probably thinking i know i got the answer right....i hope i got it right...please let it be right
John 5:24
24 “Truly, truly, I say to you, he who hears My word, and believes Him who sent Me, has eternal life, and does not come into judgment, but has passed out of death into life.
“A nation of sheep will beget a government of wolves.”
-Edward R Murrow
St. Richard the Sarcastic--The Patron Saint of Irony
24 “Truly, truly, I say to you, he who hears My word, and believes Him who sent Me, has eternal life, and does not come into judgment, but has passed out of death into life.
“A nation of sheep will beget a government of wolves.”
-Edward R Murrow
St. Richard the Sarcastic--The Patron Saint of Irony
-
Zionist
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Re: Simple math problem?
lol
Our rightousness is of filthy rags and in the eyes of God all have gone astray and nobody is justified under the Law. We are saved by the Grace of God through our faith in Him and in Him who he has sent Jesus Christ alone. There is no other way.
Re: Simple math problem?
You must be a relativist.RickD wrote:Actually, I had complete confidence that I had the correct answer. After my son told me that the teacher said my answer was wrong, I did the problem a few more times, just to make sure. it was as simple as 2x2= 16.Zionist wrote:you were nervous there for a moment huh Rick? probably thinking i know i got the answer right....i hope i got it right...please let it be right
Let us proclaim the mystery of our faith: Christ has died, Christ is risen, Christ will come again.
Lord I am not worthy that you should enter under my roof, but only say the word and my soul shall be healed.
Lord I am not worthy that you should enter under my roof, but only say the word and my soul shall be healed.
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RickD
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Re: Simple math problem?
Sure. The concept of math itself is relative. My 2x2=16, may be your 2x2=4.Byblos wrote:You must be a relativist.RickD wrote:Actually, I had complete confidence that I had the correct answer. After my son told me that the teacher said my answer was wrong, I did the problem a few more times, just to make sure. it was as simple as 2x2= 16.Zionist wrote:you were nervous there for a moment huh Rick? probably thinking i know i got the answer right....i hope i got it right...please let it be right
John 5:24
24 “Truly, truly, I say to you, he who hears My word, and believes Him who sent Me, has eternal life, and does not come into judgment, but has passed out of death into life.
“A nation of sheep will beget a government of wolves.”
-Edward R Murrow
St. Richard the Sarcastic--The Patron Saint of Irony
24 “Truly, truly, I say to you, he who hears My word, and believes Him who sent Me, has eternal life, and does not come into judgment, but has passed out of death into life.
“A nation of sheep will beget a government of wolves.”
-Edward R Murrow
St. Richard the Sarcastic--The Patron Saint of Irony