Find the Sum $\left( \frac { 5 } { 8 } x ^ { 3 } + 2 \right) + \left( \frac { 5 } { 16 } x ^ { 3 } - 5 \right)$

question 141

Multiple Choice

Find the sum $\left( \frac { 5 } { 8 } x ^ { 3 } + 2 \right) + \left( \frac { 5 } { 16 } x ^ { 3 } - 5 \right)$ .

• A) \(\frac { 15 } { 16 } x ^ { 3 } - 3\)
• B) \(\frac { 15 } { 16 } x ^ { 6 } - 3\)
• C) \(15 x ^ { 3 } - 48\)
• D) \(15 x ^ { 6 } - 48\)
• E) \(\frac { 15 } { 16 } x ^ { 9 } - 3\)

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Definitions:

Random Sample

A subset of individuals chosen from a larger set (population) where each individual has an equal chance of being selected.

Nonequivalent Groups

Groups in an experimental design that are not created equal, often due to the absence of random assignment.

Replication

The process of repeating an experiment or study to confirm the results.

Mozart Effect

The theory suggesting that listening to Mozart's music may induce a short-term improvement on the performance of certain kinds of mental tasks.