Simplify the Expression $\left( \frac { 2 } { 9 } \right) ^ { - 2 }$

question 41

Multiple Choice

Simplify the expression. $\left( \frac { 2 } { 9 } \right) ^ { - 2 }$

• A) \(\frac { 81 } { 4 }\)
• B) \(\frac { 9 } { 2 }\)
• C) \(- \frac { 4 } { 81 }\)
• D) \(\frac { 4 } { 81 }\)
• E) \(- \frac { 81 } { 4 }\)

---

Definitions:

Protons

Positive-charged particles present in the core of an atom, known as subatomic particles.

Electrons

Subatomic particles with negative charge, found in all atoms and acting as the primary carrier of electricity in solids.

Atomic Number

The quantity of protons present in an atom's nucleus, which dictates the element's chemical characteristics and position within the periodic table.

Alchemists

Ancient practitioners who sought to transform base metals into noble metals, such as gold, and to discover a universal cure for disease and a way of extending life.