Solve the System Using Gauss-Jordan Elimination $$\left\{ \begin{aligned}x + y + 2 z + t & = 62 \\x + 2 y + z + t & = 62 \\2 x + y + z + t & = 49 \\x + y + z + 2 t & = 62\end{aligned} \right.$$

question 140

Multiple Choice

Solve the system using Gauss-Jordan elimination. $$\left\{ \begin{aligned}x + y + 2 z + t & = 62 \\x + 2 y + z + t & = 62 \\2 x + y + z + t & = 49 \\x + y + z + 2 t & = 62\end{aligned} \right.$$

• A) \(( 2 , - 15,15 , - 15 )\)
• B) \(( - 2,15,15,15 )\)
• C) \(( 2 , - 15,15,15 )\)
• D) \(( 2,15,15,15 )\)
• E) \(( 2,15 , - 15,15 )\)

Understand the chronological development of life on Earth, including key events across different eons, eras, and periods.

Identify and describe geological and biological methods for dating fossils and events in Earth's history.

Interpret the significance of sedimentary strata in understanding Earth's past.

Recognize the impact of mass extinctions on the evolution and diversification of life.

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Definitions:

Trichomes

Small hairs or other outgrowths from the epidermis of plants, often serving as defense against herbivores and reducing water loss.

Photosynthetic Mesophyll

The layer of cells in a leaf where most photosynthesis occurs, rich in chloroplasts.

Gas Exchange

The process by which oxygen is taken in and carbon dioxide is released out, occurring in the lungs and tissues or in the cells and environment for organisms.

Transpiration

The process by which plants absorb water through the roots and then give off water vapor through pores in their leaves.