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simplify by using the order of operations. (10.49 - (15.21 - 13.91)^2 =…

Question

simplify by using the order of operations.

(10.49 - (15.21 - 13.91)^2 = \square)

Explanation:

Response

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"concepts_used": [
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"new_concepts": [
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</pre_analysis>

<reasoning>

Subtract inside the parentheses

\[
15.21 - 13.91 = 1.3
\]

Evaluate the exponent

\[
(1.3)^2 = 1.69
\]

Subtract from the first term

\[
10.49 - 1.69 = 8.8
\]
</reasoning>

<answer>
Simplify by using the order of operations.
\[10.49 - (15.21 - 13.91)^2 =\] <blank>\(8.8\)</blank>
</answer>

<post_analysis>
{
"subject": "Mathematics",
"question_type": "Fill-in-the-blank",
"knowledge_point": [
"Mathematics",
"Algebra",
"Order of Operations"
]
}
</post_analysis>

Answer:

<pre_analysis>
{
"quality": "clear",
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"skills_matched": [
"step_cot",
"blank_filling_formatter",
"explain_then_answer",
"quick"
],
"needs_drawing": false,
"concepts_used": [
"Decimal Arithmetic"
],
"new_concepts": [
"Order of Operations",
"Decimal Exponents"
],
"current_concepts": [
"Decimal Arithmetic",
"Order of Operations",
"Decimal Exponents"
]
}
</pre_analysis>

<reasoning>

Subtract inside the parentheses

\[
15.21 - 13.91 = 1.3
\]

Evaluate the exponent

\[
(1.3)^2 = 1.69
\]

Subtract from the first term

\[
10.49 - 1.69 = 8.8
\]
</reasoning>

<answer>
Simplify by using the order of operations.
\[10.49 - (15.21 - 13.91)^2 =\] <blank>\(8.8\)</blank>
</answer>

<post_analysis>
{
"subject": "Mathematics",
"question_type": "Fill-in-the-blank",
"knowledge_point": [
"Mathematics",
"Algebra",
"Order of Operations"
]
}
</post_analysis>