Solve for the Indicated Variable $A = 2 \pi a ^ { 2 }$

question 105

Multiple Choice

Solve for the indicated variable.
- $A = 2 \pi a ^ { 2 }$ , for $a$

• A) \(\mathrm { a } = \frac { \pm \mathrm { A } \sqrt { 2 \pi } } { 2 \pi }\)
• B) \(\mathrm { a } = \frac { \pm \sqrt { \mathrm { A } \pi } } { 2 }\)
• C) \(a = \frac { \pm \sqrt { 2 \pi \mathrm { A } } } { 2 \pi }\)
• D) \(a = \sqrt { 2 \pi \mathrm { A } }\)

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Definitions:

Experimental Method

A scientific approach to research in which variables are manipulated to observe their effect on other variables, allowing for determination of cause-and-effect relationships.

Focus Group

A research method involving guided discussions with a group of people to gather diverse perspectives on a particular subject.

Positive Correlation

Positive correlation exists when two variables move in the same direction, meaning that as one variable increases, the other variable also increases.

Negative Correlation

A relationship between two variables in which one variable increases as the other decreases, and vice versa.