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calculator not allowed work out \\((3 \\times 10^4) \\times (2 \\times …

Question

calculator not allowed

work out \\((3 \times 10^4) \times (2 \times 10^9)\\)

give your answer in standard form.

Explanation:

Response

<pre_analysis>
{
"quality": "clear",
"question_count": 1,
"skills_matched": [
"step_cot",
"explain_then_answer",
"quick"
],
"needs_drawing": false,
"concepts_used": [
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"Standard Form"
],
"new_concepts": [],
"current_concepts": [
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]
}
</pre_analysis>

<reasoning>

Group the numerical coefficients and powers of 10

\[
(3 \times 10^4) \times (2 \times 10^9) = (3 \times 2) \times (10^4 \times 10^9)
\]

Multiply the coefficients and apply the laws of indices

\[
3 \times 2 = 6
\]
\[
10^4 \times 10^9 = 10^{4+9} = 10^{13}
\]

Combine into standard form

\[
6 \times 10^{13}
\]
</reasoning>

<answer>
\(6 \times 10^{13}\)
</answer>

<post_analysis>
{
"subject": "Mathematics",
"question_type": "Free Response",
"knowledge_point": [
"Mathematics",
"Algebra",
"Scientific Notation"
]
}
</post_analysis>

Answer:

<pre_analysis>
{
"quality": "clear",
"question_count": 1,
"skills_matched": [
"step_cot",
"explain_then_answer",
"quick"
],
"needs_drawing": false,
"concepts_used": [
"Scientific Notation",
"Standard Form"
],
"new_concepts": [],
"current_concepts": [
"Scientific Notation",
"Standard Form",
"Laws of Indices"
]
}
</pre_analysis>

<reasoning>

Group the numerical coefficients and powers of 10

\[
(3 \times 10^4) \times (2 \times 10^9) = (3 \times 2) \times (10^4 \times 10^9)
\]

Multiply the coefficients and apply the laws of indices

\[
3 \times 2 = 6
\]
\[
10^4 \times 10^9 = 10^{4+9} = 10^{13}
\]

Combine into standard form

\[
6 \times 10^{13}
\]
</reasoning>

<answer>
\(6 \times 10^{13}\)
</answer>

<post_analysis>
{
"subject": "Mathematics",
"question_type": "Free Response",
"knowledge_point": [
"Mathematics",
"Algebra",
"Scientific Notation"
]
}
</post_analysis>