Perform the Indicated Operations $\frac { x ^ { 9 } } { x ^ { 19 } }$

Multiple Choice

Perform the indicated operations. Write the result using only positive exponents. Assume all variables represent nonzero
real numbers.
- $\frac { x ^ { 9 } } { x ^ { 19 } }$

A) $- x ^ { 10 }$
B) $\frac { 1 } { x ^ { 10 } }$
C) $x ^ { 10 }$
D) $\frac { 1 } { x ^ { 28 } }$