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The plus minus symbol means both plus and minus should be considered; or that
a measurement or estimate may be plus or minus the number after the sign.
For example, a measured temperature may be state as 123 +/- 0.2 C, which means temperature may be between 122.8 C and 123.2 C.
An estimated attendance at an eventmay be given as 2500 +/- 100 , which means attendance should be between 2400 and 2600.
The quadratic formula contains a plus minus sign, meaning that there are two roots to be
obtained and given consideration.
For example, t = 30 +/- 40 which means the answer may mathematically be 70 or - 10 , Realistically, the answer may be either or both numbers.
Wiki User
∙ 9y ago
Wiki User
∙ 9y agoIt means "plus or minus". Here are two examples:
* In the quadratic formula, it means that there are two solutions; you get one if you replace the "plus-minus" sign with a plus, and the other if you replace it with a minus.
* When specifying a measurement, for example 9.1 plus-minus 0.2, it means (in this example) that the error is not expected to be much greater than 0.2.
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What is the symbol which is a plus sign above a minus?
It indicates "plus or minus".
Terms are separated by what mathematical symbol?
a plus or minus sign your welcome ;D
What does a plus with a line under it mean?
It means the answe is either plus or minus
What is a plus and a plus if a plus and a minus is a minus?
A plus + a plus is a plus.
What is sum plus or minus?
It is another way to say approximately. If you say, 345.5 is the sum, plus or minus, you mean that 345.5 is not the exact answer, but close enough for the situation.
What are the Chinese plus and minus symbols?
Plus symbol (chinese): + Minus symbol (chinese): -
What is the symbol which is a plus sign above a minus?
It indicates "plus or minus".
Does plus minus mean plus?
Same mathematical signs equal plus Different mathematical signs equal minus Plus Plus = Plus (+)(+) = + Minus Minus = Plus (-)(-) = + Plus Minus = Minus (+)(-) = - Minus Plus = Minus (-)(+) = - So the direct answer to your question would be: plus minus equals minus
What does a plus with a minus under it mean math?
A plus with a minus under it means "plus or minus" in math.
What is operation symbol?
a operation symbol is like minus(-) plus(+) multiply(X)and divide
How do you define a symbol such as plus or - as a variable in python?
Use a character variable. For example: plus = '+' minus = '-' You can now refer to these symbols using the variable names "plus" or "minus".
How do you make a plus or minus sign on a mac?
Shift-Option-Plus (+) will produce the ± symbol on a Mac.
What does the plus over the minus sign mean?
plus or minus. You see it often with square roots. The square root of 9 is plus or minus 3.
Terms are separated by what mathematical symbol?
a plus or minus sign your welcome ;D
What is a operation symbols?
a operation symbol is like minus(-) plus(+) multiply(X)and divide
How do i construct a 99 confidence interval?
Mean plus or minus 1.95 SEM. Mean minus 1,95 SEM to Man plus 1,95 SEM.
What plus and minus signs mean in correlation mean?
They equal a minus and two +'s or two -'s equal a + :)
