Simplify the Numerical Expression and Express Your Answer in Reduced $\frac { 1 } { 5 } + \frac { 3 } { 9 } \cdot \frac { 9 } { 21 } - \frac { 1 } { 14 } \cdot \frac { 2 } { 5 }$

question 192

Multiple Choice

Simplify the numerical expression and express your answer in reduced form. $\frac { 1 } { 5 } + \frac { 3 } { 9 } \cdot \frac { 9 } { 21 } - \frac { 1 } { 14 } \cdot \frac { 2 } { 5 }$

• A) \(\frac { 4 } { 5 }\)
• B) \(\frac { 7 } { 35 }\)
• C) \(\frac { 11 } { 35 }\)
• D) \(\frac { 6 } { 7 }\)
• E) none of these

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Definitions:

Intrusive Contact

The boundary between intrusive igneous rocks and the surrounding country rock into which they have intruded.

Axial Surface

A surface that connects the hinge lines in a fold.

Overturned Anticline

A geological fold where the layers have been tilted past vertical, making the older layers overlie the younger ones.

Inclined Syncline

A fold in sedimentary strata that slopes downward on both sides from the crest.