Question

multiply. write your answer in scientific notation.
$(2 \times 10^{-2})(2 \times 10^{-1})$

Explanation:

Step1: Multiply the coefficients

$2 \times 2 = 4$

Step2: Add the exponents of 10

$10^{-2} \times 10^{-1} = 10^{-2 + (-1)} = 10^{-3}$

Step3: Combine the results

$4 \times 10^{-3}$

Answer:

$4 \times 10^{-3}$