Math Equation a lot of people get wrong 

3 years ago  '12 #361  
$1,345  5 
Remembering a middle school formula doesn't mean that you understand math, it means that you are good at memorizing acronyms.  

3 years ago  '12 #362 
$1,345  5 
Also, the concept of math being universal and invariant tends to ignore the various schools of philisophical thought about math.
Embodied Mind Theory "Embodied mind theories hold that mathematical thought is a natural outgrowth of the human cognitive apparatus which finds itself in our physical universe. For example, the abstract concept of number springs from the experience of counting discrete objects. It is held that mathematics is not universal and does not exist in any real sense, other than in human brains. Humans construct, but do not discover, mathematics." Fictionalism "Field suggested that mathematics was dispensable, and therefore should be considered as a body of falsehoods not talking about anything real. He did this by giving a complete axiomatization of Newtonian mechanics that didn't reference numbers or functions at all... Having shown how to do science without using numbers, Field proceeded to rehabilitate mathematics as a kind of useful fiction. He showed that mathematical physics is a conservative extension of his nonmathematical physics (that is, every physical fact provable in mathematical physics is already provable from Field's system), so that mathematics is a reliable process whose physical applications are all true, even though its own statements are false. Thus, when doing mathematics, we can see ourselves as telling a sort of story, talking as if numbers existed. For Field, a statement like "2 + 2 = 4" is just as fictitious as "Sherlock Holmes lived at 221B Baker Street"—but both are true according to the relevant fictions." Social Constructivism "Social constructivism or social realism theories see mathematics primarily as a social construct, as a product of culture, subject to correction and change. Like the other sciences, mathematics is viewed as an empirical endeavor whose results are constantly evaluated and may be discarded. However, while on an empiricist view the evaluation is some sort of comparison with "reality", social constructivists emphasize that the direction of mathematical research is dictated by the fashions of the social group performing it or by the needs of the society financing it. This runs counter to the traditional beliefs of working mathematicians, that mathematics is somehow pure or objective. But social constructivists argue that mathematics is in fact grounded by much uncertainty: as mathematical practice evolves, the status of previous mathematics is cast into doubt, and is corrected to the degree it is required or desired by the current mathematical community. This can be seen in the development of analysis from reexamination of the calculus of Leibniz and Newton. " Last edited by Thugocracy; 01042014 at 12:01 PM.. 

3 years ago  '13 #363 
$14,648  10 
Yo i remember this prime thread
n*ggas out here strugglin and gotta remember PEMDAS 

3 years ago  '10 #364 
$18,689  180 
damn a lot of retarded fu*ks in this thread
its 4 dumbasses yes it goes aunt salley but that doesnt mean + before minus, its whichever one comes first 

3 years ago  '12 #365  
$1,345  5 
 

3 years ago  '08 #366 
$4,997  445 
I got 4...after multiplication you go left to right at least that's what I remember in middle school.


3 years ago  '10 #367  
$18,689  180 
 

3 years ago  '05 #368  
$9,926  1703 
 

3 years ago  '11 #369  
$6,066  147 
 

3 years ago  '10 #370  
$7,377  1687 
which is easy as fu*k and determines whether or not ur gona be a fu*kign retard or not in life  

3 years ago  '12 #371 
$2,792  1383 
I got 4


3 years ago  '12 #372  
$1,345  5 
 

3 years ago  '13 #373 
$14,648  10 
Let's be honest, the fact that n*ggas gotta just think about the PEMDAS acronym when you the age of 16+ means you are retarded


3 years ago  '05 #374 
$8,933  295 
Its 2 u got damn idiots lol!!


3 years ago  '05 #375  
$11,795  110 
 

3 years ago  '05 #376 
$4,273  367 
Y'all dumb as hell...listen to it this way maybe you'll understand 

2 years ago  '11 #377 
$4,298  1015 


2 years ago  '13 #378 
$2,224  583 
Answer's 4.
74+3x0+1 74+(3x0)+1 74+0+1 74+1 3+1 4 

2 years ago  '05 #379  
$6,839  211 
 

2 years ago  '05 #380 
$924  101 
A common technique for remembering the order of operations is the abbreviation "PEMDAS", which is turned into the phrase "Please Excuse My Dear Aunt Sally". It stands for "Parentheses, Exponents, Multiplication and Division, and Addition and Subtraction". This tells you the ranks of the operations: Parentheses outrank exponents, which outrank multiplication and division (but multiplication and division are at the same rank), and these two outrank addition and subtraction (which are together on the bottom rank). When you have a bunch of operations of the same rank, you just operate from left to right. For instance, 15 ÷ 3 × 4 is not 15 ÷ 12, but is rather 5 × 4, because, going from left to right, you get to the division first.
If you're not sure of this, test it in your calculator, which has been programmed with the Order of Operations hierarchy. For instance, typesetting this into a graphing calculator, you will get: calculator screenshot: 15 / 3 * 4 = 20 Using the above hierarchy, we see that, in the "4 + 2×3" question at the beginning of this article, Choice 2 was the correct answer, because we have to do the multiplication before the addition. Hope that clears it up for you guys. 



