HI    I ASSUME THAT YOU WANT THE VOLUME OF A CUBE OR BOX   

IF SO THEN YOU HAVE TO MEASURE THE TWO SIDES THEN THE HEIGHT

EG.     A BOX 400mm  x 500mm  x  300mm height

THEREFORE THE VOLUME IN METRES WOULD BE    .4 X .5 X .2 =  .04 cu metres

IF YOU WANT OTHER VOLUMES AS ANOTHER QUESTION AS MORE COMPLICATED SHAPES REQUIRE MORE COMPLEX EQUATIONS

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HI     IF YOU LOG ONTO THE DOOR MANUFACTURERS SITE THEY USUALY HAVE INSTRUCTIONS ON HOW TO ADJUST THIER DOORS    GOOGLE SEARCH ENGINE IS GOOD FOR THIS

HOPE THIS HELPS BE CAR FUL  WHEN YOU ADJUST THE SPRING THEY CAN BITE

HI    [ X-2] + 3 = 2X       X-2 = 2X-3      X-2 -2X = -3      -2 -X = -3     

THEREFORE   -X = -1           THEREFORE  X = 1

JUST TO CHECK SUBSTITUTE X       [X - 2 ] +3 = 2X        1 - 2 +3 = 2         -1 +3 = 2

THEREFORE     2 = 2

WHEN YOU CARRY NUMBERS FROM ONE SIDE OF THE EQUALS SIGN THEY CHANGE THERE POWERS     SO ADD BECOMES  MINUS          MINUS BECOMES  A PLUS 

DIVIDE BECOME MULTIPLICATION   AND     MULTIPLICATION BECOMES  DIVIDE

THE EQUATION STARTS WITH PARENTHASIS  AROUND THE X-2 SO THE +3 HAS TO BE TAKEN OVER TO THE OTHER SIDE OF THE EQUALS SO THAT IT RELEASES  [X-2] FROM THE PARENTHASIS

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HI LOG ONTO GOOGLE SEARCH ENGINE THEN ON THE CONTROL BUTTON BAR YOU WILL SEE    MAPS   PICK THIS AND A NEW WINDOW OPENS UP SHOWING THE BRITISH ISLES

TOP LEFT BUTTON SAYING DIRECTIONS PICK THIS AND FILL IN THE TWO PLACES THE MAP WILL SHOW YOU THE QUICKES ROUTE

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HI IF YOU LOG ONTO GOOGLE SEARCH ENGINE AND PUNCH IN CRAFTSMAN WEEDEATER  MANUAL THERE  ARE  HUNDREDS OF SITE WITH INFO ON

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HI

The Order of Operations: PEMDAS (page 1 of 3)If you are asked to simplify something like "4 + 2×3", the question that naturally arises is "Which way do I do this? Because there are two options!":

Choice 1: 4 + 2×3 = (4 + 2)×3 = 6×3 = 18

Choice 2: 4 + 2×3 = 4 + (2×3) = 4 + 6 = 10

It seems as though the answer depends on which way you look at the problem. But we can't have this kind of flexibility in mathematics; math won't work if you can't be sure of the answer, or if the exact same problem can calculate to two or more different answers. To eliminate this confusion, we have some rules of precedence, established at least as far back as the 1500s, called the "order of operations". The "operations" are addition, subtraction, multiplication, division, exponentiation, and grouping; the "order" of these operations states which operations take precedence (are taken care of) before which other operations.

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:

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.

(Note: Speakers of British English often instead use "BODMAS", which stands for "Brackets, Orders, Division and Multiplication, and Addition and Subtraction". Since "brackets" are the same as parentheses and "orders" are the same as exponents, the two acronyms mean the same thing.)

The order of operations was settled on in order to prevent miscommunication, but PEMDAS can generate its own confusion; some students sometimes tend to apply the hierarchy as though all the operations in a problem are on the same "level", but often those operations are not "equal". Many times it helps to work problems from the inside out, rather than left-to-right, because often some parts of the problem are "deeper down" than other parts. The best way to explain this is to do some examples:

Simplify 4 + 32.

I need to simplify the term with the exponent before trying to add in the 4:

4 + 32 = 4 + 9 = 13

Simplify 4 + (2 + 1)2.

I have to simplify inside the parentheses before I can take the exponent through. Only then can I do the addition of the 4.

4 + (2 + 1)2 = 4 + (3)2 = 4 + 9 = 13

Simplify 4 + [–1(–2 –1)]2.

I shouldn't try to do these nested parentheses from left to right; that method is simply too error-prone. Instead, I'll try to work from the inside out. First I'll simplify inside the curvy parentheses, then simplify inside the square brackets, and only then take care of the squaring. After that is done, then I can finally add in the 4:

4 + [–1(–2 – 1)]2
= 4 + [–1(–3)]2
= 4 + [3]2
= 4 + 9
= 13

There is no particular significance in the use of square brackets (the "[" and "]" above) instead of parentheses. Brackets and curly-braces (the "{" and "}" characters) are used when there are nested parentheses, as an aid to keeping track of which parentheses go with which. The different grouping characters are used for convenience only.

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HI DIVDE  50000 BY THE 200   =   250  SO THE ODDS ARE 250 TO 1

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HI HAVE YOU MADE SURE THAT THE IGNITION IS ON,  AS THE RELAY WILL NOT OPERATE WITH OUT POWER TO THE ELECTRO-MAGNET

IF THE IGNITION IS ON THEN NO POWER IS GETTING THROUGH THE RELAY THEN IT IS POSSIBLE THAT THE RELAY IS BURNT OUT

IT IS POSSIBLE TO WIRE DIRECT TO YOUR FUEL PUMP JUST TO CHECK IT MAKE SURE YOU HAVE THE CORRECT POLARITY OR YOU WILL BURN YOUR FUEL PUMP OUT AS WELL

IF THE PUMP WORKS THIS WAY THEN YOU WILL HAVE TO REPLACE THE RELAY I USUALLY TRY TO GET ONE FROM A BREAKERS YARD TRY THAT FIRST IF IT SOLVES THE PROBLEM I THEN BUY THE PROPER ITEM FROM  OFF E-BAY OR SPARES SUPPLIER

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HI FROM WHAT I'VE BEEN TOLD THIS IS A SURE SIGN THAT THE PLASMA SCREEN IS ABOUT TO PACK UP BEST THING IS TO GET AN ENGINEER OUT TO TAKE A LOOK  TROUBLE IS THEY COST MONEY YOU ARE BETTER OFF PUTTING IT TOWARDS A NEW TELLY

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HI          4/5Y + 5/8 = 5/4Y + 1/8        4/5Y + 5/8 - 1/8 = 5/4Y         4/5Y +  1/2 = 5/4Y       THEREFORE   1/2 = 5/4Y - 4/5Y  

MULTIPLY BY LOWEST COMMON DENOMINATOR WHICH IS 4 X 5 =20

THEREFORE   20/2 = 20 X 5/4Y - 20X4/5Y                   10 = 25Y - 16Y   

THEREFORE   10 = 9Y         Y=   10/9

HOPE  I HAVE EXPLAINED THIS FOR YOU OK  IF NOT ASK ANOTHER QUESTION