Tarea: Expresiones Algebraicas Instrucciones: Evalúa las siguientes expresiones algebraicas con la información dada. Recuerda incluir el proceso. (30 puntos) Evalúa las siguientes expresiones algebraicas si a = 3, b = -2 yc = 5. 1 2a + 3b

-3c + 4b

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-23.3

Step-by-step explanation:

Given:

a = 3, b = -2, c = 5. 1

Equation;

2a + 3b   - 3c + 4b

Find:

Solution

Computation:

2a + 3b   - 3c + 4b

2(3) + 3(-2)   - 3(5.1) + 4(-2)

6 - 6 - 15.3 - 8

-23.3

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answer: when you burn wood, the carbon reacts with the oxygen in the air to create ash and smoke. that is a permanent change you cannot undo that.

step-by-step explanation:

option (b) is correct

step-by-step explanation:

to find the solution of this system, we need to convert it into reduced row-echelon form. we have,

after applying row operations r2 -> r2/2 and r3 -> r3/3, we get,