Which is false?
A) An Equation must have an equal sybol
B) An equation states that two expressions are equal
C) An equation always contains variables
D) An equation always contains terms
2007-01-31 08:55:32 · 7 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
The answer is definitely C.
This is true because something like, 5+3=8, for example is an equation, yet it has no variables.
2007-01-31 09:01:51 · answer #1 · answered by Anonymous · 2⤊ 0⤋
The answer is C). An equation must have an equals sign, otherwise it's just an expression and not an EQUation. So A) is true.
Having an equals sign is the same way as saying some expression on the left is equal to whatever is writtten on the right, so B) must be true too.
An equation must also have some terms, because you have to say "something" is equal to "something" else (you just can't leave one side blank and call it an equation), so D) is true.
C) is false because you can certainly have an equation that uses no variables. "1+1=2" is an example. That has terms separated on either side by an euqals sign, but no variables.
2007-01-31 17:01:53 · answer #2 · answered by Anonymous · 1⤊ 0⤋
B is false.
An expression may not include a variable and thus there can be no equation.
2^2 = 4 is not an equation, because ther are no variables. There is nothing to solve. It is an identity.
2007-01-31 17:05:52 · answer #3 · answered by ironduke8159 7 · 0⤊ 1⤋
C- An equation always contains variables.
2007-01-31 17:03:08 · answer #4 · answered by Anonymous · 0⤊ 1⤋
It's not clear cut but I would say C)
2007-01-31 17:04:57 · answer #5 · answered by krumenager 3 · 0⤊ 1⤋
I think ) c
2007-01-31 17:00:16 · answer #6 · answered by Kelly 1 · 0⤊ 0⤋
C
2007-01-31 16:58:31 · answer #7 · answered by anklegno 2 · 0⤊ 0⤋