Multiply and Simplify $y ^ { - 9 } \cdot y ^ { - 2 }$

question 130

Multiple Choice

Multiply and simplify.
- $y ^ { - 9 } \cdot y ^ { - 2 }$

• A) \(\frac { 1 } { y ^ { 11 } }\)
• B) \(\frac { 1 } { y ^ { 7 } }\)
• C) \(\frac { 1 } { y ^ { - 11 } }\)
• D) \(\mathrm { y } ^ { 11 }\)

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