Question

(4.8 × 10⁶)(3.9 × 10⁻⁸)

Explanation:

Step1: Multiply the coefficients

$4.8 \times 3.9 = 18.72$

Step2: Multiply the powers of 10

$10^{6} \times 10^{-8} = 10^{6 + (-8)} = 10^{-2}$

Step3: Combine the two results

$18.72 \times 10^{-2}$

Step4: Convert to proper scientific notation

$1.872 \times 10^{1} \times 10^{-2} = 1.872 \times 10^{-1}$

Answer:

$1.872 \times 10^{-1}$ (or 0.1872)