4x10^-2 x 1.3x10^-1

Answer 1

To multiply the numbers \(4 \times 10^{-2}\) and \(1.3 \times 10^{-1}\), you can follow these steps:

1. Multiply the coefficients: \[ 4 \times 1.3 = 5.2 \]

2. Add the exponents of the powers of 10: \[ 10^{-2} \times 10^{-1} = 10^{-2 + (-1)} = 10^{-3} \]

Combining both results, you get: \[ 5.2 \times 10^{-3} \]

Thus, the final answer is: \[ 5.2 \times 10^{-3} \]