Subtract numbers and scientific notation subtract 4.66×10 negative power 5-7.34×10 power of -7 with the answer be -4.5866×10 power of -5 or 4.5866×10 power of -5 or 4.5866×10 with the power of -5 or-2.68×10 power of two or last 2.68×10 power of two

Answer 1

To subtract \( 4.66 \times 10^{-5} - 7.34 \times 10^{-7} \), we first need to express both numbers in the same power of 10.

1. Convert \( 7.34 \times 10^{-7} \) to match the power of \( 10^{-5} \): \[ 7.34 \times 10^{-7} = 0.0734 \times 10^{-5} \] (We moved the decimal two places to the right, which decreases the exponent by 2).

2. Now perform the subtraction: \[ 4.66 \times 10^{-5} - 0.0734 \times 10^{-5} = (4.66 - 0.0734) \times 10^{-5} = 4.5866 \times 10^{-5} \]

Thus, the answer is \( 4.5866 \times 10^{-5} \).

So, the correct answer among your options is:

• 4.5866 × 10^{-5}