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

Multiple Choice

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

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