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Stupid math problem from facebook post


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http://www.math.com/school/subject2/lessons/S2U1L2GL.html

When expressions

have more than one operation, we have to follow rules for the order of operations:

  1. First do

    all operations that lie inside parentheses.

  2. Next, do

    any work with exponents or radicals.

  3. Working from

    left to right, do all multiplication and division.

  4. Finally,

    working from left to right, do all addition and subtraction.

yea I thought so

Thanks I was pretty excited about the alt myself. kind of like a school girl, in a dress, on a swing. lol

It's warming up enough that the donut-punching cyclist douchenozzles are getting their two wheeled fagmobiles out.

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What is the correct order of operations? Why use it? What is PEMDAS?

The order of operations in which one is to interpret a mathematical
expression such as

"2+3 * 5" is a convention. This
means that a long time ago, people just decided on an order in which
operations should be performed. It has nothing to do with magic or
logic. Some people decided to adopt a way, and it has stuck ever since.
It just makes communication a lot easier.



Another way of saying this is that rather than being inherent in the
structure of mathematics, the concept of "order of operations" is a
matter of mathematical notation. Order of operations refers to which
operations should be performed in what order, but it's just convention.
The notation tells you which operations to do first, not something about
the underlying mathematics.



To remember the conventional order of operations, you can think of


PEMDAS

(You might remember this as "Please excuse my dear Aunt Sally.")1

  1. Parentheses
  2. Exponents
  3. Multiplication and Division
  4. Addition and Subtraction



This means that you should do what is possible within parentheses first,
then exponents, then multiplication and division (from left to right),
and then addition and subtraction (from left to right). If parentheses
are enclosed within other parentheses, work from the inside out.


1
Some people are taught to remember
BEDMAS
:


Brackets


Exponents


Division and Multiplication, left to right


Addition and Subtraction, left to right



Here are two examples:

  • 3 + 5 x 7 = ?

    3 + 5 x 7 = 3 + 35 = 38



    (1 + 3) x (8 - 4) = ?

    (1 + 3) x (8 - 4) = 4 x 4 = 16

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CJ is right its 1. Again order of operations goes from left to right and is as follows

Parenthesis

Exponents

Multiplication

Division

Addition

Subtraction

And If you are working within the parenthesis with multiple operations the rest of PEMDAS still applies. For example you would check for any further parenthesis' and solve them from left to right, then you would find and solve exponents, multiplication, division, addition and subtraction until the parentheses were solved. Its easy math.

2004 GMC Envoy1 XS power S3400 batt under the hood and 4 XS Power D3100's battery installed in the rear by the amps0 gauge power wire from front to backAlpine iva-w205 touchscreen dvd/cd/mp3/ipod/am/fm/gps headunitSundown Audio SAX-200.4 amp for my mids and highs8 gauge speaker wire from amp to woofer270 amp Mechman AltRockford Fosgate T1652-s component speakersRockford Fosgate 3Sixty.2 sound processorRca's from Rockford Fosgate and Monster Cable14 gauge speaker wire for the mids and highs1 18" Ascendant Audio SMD Dual 1 ohm with custom Black & Blue carbon fiber and hand signed dustcapBox: 5.66 cubic feet net volume box tuned to 30.13Hz with 1.5" wide wooden dowels and 1.5" thick baffle1 DC Audio 5.0k amp wired to .5 ohms nominal with an imp rise of 1.35 ohms for the single AA SMD 18"Future Vision 8000k 50w bi-xenon projector HID's with 4300k 35w fog lightsLink to my build: Buildupdates/progress

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Some guy on youtube explained this. The answear is 9

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http://www.stevemeadedesigns.com/board/topic/155628-matt14s-yukon-mayhem-in-a-4th-ordernew-amps-and-bats/page-3

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CJ is right its 1. Again order of operations goes from left to right and is as follows

Parenthesis

Exponents

Multiplication

Division

Addition

Subtraction

And If you are working within the parenthesis with multiple operations the rest of PEMDAS still applies. For example you would check for any further parenthesis' and solve them from left to right, then you would find and solve exponents, multiplication, division, addition and subtraction until the parentheses were solved. Its easy math.

lol i think he said his answer was 9

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CJ is right its 9. Again order of operations goes from left to right and is as follows

Parenthesis

Exponents

Multiplication

Division

Addition

Subtraction

And If you are working within the parenthesis with multiple operations the rest of PEMDAS still applies. For example you would check for any further parenthesis' and solve them from left to right, then you would find and solve exponents, multiplication, division, addition and subtraction until the parentheses were solved. Its easy math.

fify

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