Write the Expression with Only Positive Exponents and Evaluate If $\left( \frac { 2 } { 5 } \right) ^ { - 2 }$

question 490

Multiple Choice

Write the expression with only positive exponents and evaluate if possible. Assume all variables represent nonzero real
numbers.
- $\left( \frac { 2 } { 5 } \right) ^ { - 2 }$

• A) \(\frac { 4 } { 25 }\)
• B) \(\frac { 25 } { 4 }\)
• C) \(- \frac { 4 } { 25 }\)
• D) \(- \frac { 25 } { 4 }\)

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Definitions:

Specimen Slide

A thin slice of material, such as tissue, placed on a glass slide for examination under a microscope.

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A specific phase or period in a process or the progression of an event or disease.

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A microscope lens designed to be used with a drop of oil to increase magnification and resolution of microscopic images.

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