which number is greatest?

$2.89 \times 10^{-8}$
$1.997 \times 10^{2}$
$8.9 \times 10^{-4}$
$5 \times 10^{-6}$

Question

which number is greatest?

$2.89 \times 10^{-8}$
$1.997 \times 10^{2}$
$8.9 \times 10^{-4}$
$5 \times 10^{-6}$

Accepted Answer

{ "quality": "clear", "question_count": 1, "skills_matched": [ "step_cot", "multiple_choice_formatter", "explain_then_answer", "quick" ], "needs_drawing": false, "concepts_used": [ "Scientific Notation" ], "new_concepts": [], "current_concepts": [ "Scientific Notation", "Comparing Numbers" ] } ## Convert numbers to standard form $$ \begin{aligned} 2.89 \times 10^{-8} &= 0.0000000289 \ 1.997 \times 10^{2} &= 199.7 \ 8.9 \times 10^{-4} &= 0.00089 \ 5 \times 10^{-4} &= 0.0005 \end{aligned} $$ ## Compare the values $$ 199.7 > 0.00089 > 0.0005 > 0.0000000289 $$ ## Identify the greatest number $$ 1.997 \times 10^{2} $$

(A) $2.89 \times 10^{-8}$

(B) $1.997 \times 10^{2}$

(C) $8.9 \times 10^{-4}$

(D) $5 \times 10^{-4}$

{ "subject": "Mathematics", "question_type": "Multiple Choice", "knowledge_point": [ "Mathematics", "Algebra", "Scientific Notation" ] }

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QUESTION IMAGE

Question

Explanation:

Convert numbers to standard form

Compare the values

Identify the greatest number

Answer: