Which of these is a mathematical expression?
A
B
4 - 3r
C
4 - 3r = 1
D
“Happily ever after”
The mathematical expressions are:
4 - 3r
4 - 3r = 1
you can only pick one
In that case, the mathematical expression is:
4 - 3r
A mathematical expression is a combination of numbers, variables, and operations that can be calculated or evaluated. In the given options, the mathematical expressions are:
1. 4 - 3r: This is a mathematical expression because it includes numbers (4 and 3) along with a variable (r) and an operation (subtraction).
2. 4 - 3r = 1: This is also a mathematical expression because it follows the same structure as the previous expression, but it includes an equality sign, indicating that it is an equation.
The other options, A, B, and "Happily ever after," are not mathematical expressions. Option C is not provided, so it cannot be considered as a mathematical expression.