Question

which answer shows \\(9 \times 10^{-5}\\) written in standard form?

-0.000009
-0.00009
0.0009
0.00009

Explanation:

Identify the given expression

$$ 9 \times 10^{-5} $$

Convert negative exponent to decimal representation

$$ 10^{-5} = 0.00001 $$

Multiply by the coefficient

$$ 9 \times 0.00001 = 0.00009 $$

Answer:

• -0.000009
• -0.000009
• 0.0009
• 0.00009 (Correct answer)