The temperature at a point (x,y,z) of a solid E bounded by the coordinate planes and the plane 2 x+y+z=1 is T(x, y, z) = (xy + 8z +20) degrees Celcius. Find the average temperature over the solid. (Answer to 4 decimal places). Average Value of a function using 3 variables N y X

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
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**Problem Statement:**

The temperature at a point \((x,y,z)\) of a solid \(E\) bounded by the coordinate planes and the plane \(2 \cdot x + y + z = 1\) is \(T(x, y, z) = (xy + 8z + 20)\) degrees Celsius. Find the average temperature over the solid. (Answer to 4 decimal places).

**Title:**

**Average Value of a Function Using 3 Variables**

**Diagram Explanation:**

The diagram is a 3D representation of the solid \(E\), displayed as a triangular pyramid (tetrahedron) bounded by the coordinate planes \(x=0\), \(y=0\), and \(z=0\), and the plane \(2x + y + z = 1\). 

- The coordinate axes are labeled: \(x\), \(y\), and \(z\).
- The region where the planes intersect forms a triangular surface on the \(xy\)-plane, at \(z=0\).
- The triangular surface is shown in a shaded green area, representing the base of the solid \(E\).

The boundaries on the axes are limited from 0 to 1, indicating the finite region within the first octant (where \(x, y, z \geq 0\)). This setup is used to calculate the average value of the temperature function \(T(x, y, z)\) over the defined region.
Transcribed Image Text:**Problem Statement:** The temperature at a point \((x,y,z)\) of a solid \(E\) bounded by the coordinate planes and the plane \(2 \cdot x + y + z = 1\) is \(T(x, y, z) = (xy + 8z + 20)\) degrees Celsius. Find the average temperature over the solid. (Answer to 4 decimal places). **Title:** **Average Value of a Function Using 3 Variables** **Diagram Explanation:** The diagram is a 3D representation of the solid \(E\), displayed as a triangular pyramid (tetrahedron) bounded by the coordinate planes \(x=0\), \(y=0\), and \(z=0\), and the plane \(2x + y + z = 1\). - The coordinate axes are labeled: \(x\), \(y\), and \(z\). - The region where the planes intersect forms a triangular surface on the \(xy\)-plane, at \(z=0\). - The triangular surface is shown in a shaded green area, representing the base of the solid \(E\). The boundaries on the axes are limited from 0 to 1, indicating the finite region within the first octant (where \(x, y, z \geq 0\)). This setup is used to calculate the average value of the temperature function \(T(x, y, z)\) over the defined region.
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