The original content provided is not a coherent question or task. It appears to be a mix of polynomial expressions and incomplete lines. Here is a revised version that makes sense:

Given the polynomial expression:

[tex]\[1.78x^5 - 20x^7 + 169x^3\][/tex]

Identify the coefficients of the terms.

A. Coefficient of [tex]\(x^5\)[/tex]:
B. Coefficient of [tex]\(x^7\)[/tex]:
C. Coefficient of [tex]\(x^3\)[/tex]:



Answer :

Let's examine the given equation and the values provided:

Given:
[tex]\[ 1.78 x^5 - 20 x^7 + 169 x^3 \][/tex]

We have specific terms to evaluate:
[tex]\[ a = 1.78 x^5 \][/tex]
[tex]\[ b = -20 x^7 \][/tex]
[tex]\[ c = 169 x^3 \][/tex]

### Working through each term:

1. Term involving [tex]\( x^5 \)[/tex]:
[tex]\[ a = 1.78 x^5 \][/tex]
From the given data, the coefficient of [tex]\( x^5 \)[/tex] is 1.78.

2. Term involving [tex]\( x^7 \)[/tex]:
[tex]\[ b = -20 x^7 \][/tex]
The coefficient of [tex]\( x^7 \)[/tex] is -20, indicating this term is subtracted in the equation.

3. Term involving [tex]\( x^3 \)[/tex]:
[tex]\[ c = 169 x^3 \][/tex]
The coefficient of [tex]\( x^3 \)[/tex] is 169.

### Summary:
- The coefficient of [tex]\( x^5 \)[/tex] is 1.78.
- The coefficient of [tex]\( x^7 \)[/tex] is -20.
- The coefficient of [tex]\( x^3 \)[/tex] is 169.

Thus, the detailed coefficients of each term in the polynomial are:
[tex]\[ \begin{array}{c} a = 1.78, \\ b = -20, \\ c = 169 \end{array} \][/tex]