Expressions are mathematical statements represented with the variables
The value of 12x^-3 y-1 for x=-1 and y=5 is - 12/5
How to determine the value of the variable
The expression is given as:
[tex]12x^{-3} y^{-1}[/tex]
When x = -1, the expression becomes
[tex]12 * -1^{-3} y^{-1}[/tex]
Evaluate the exponent
[tex]- 12 y^{-1}[/tex]
When y = 5, the expression becomes
[tex]- 12 * 5^{-1}[/tex]
Evaluate the exponent
- 12/5
Hence, the value of 12x^-3 y-1 for x=-1 and y=5 is - 12/5
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