Answer: 0.0000074.
Explanation:
Step 1: Understand the notation - The expression 7.4 x 10^-6 means that you need to move the decimal point 6 places to the left since the exponent is negative.
Step 2: Move the decimal point - Start with the decimal point after the digit 4 in 7.4 and move it 6 places to the left.
Step 3: Add leading zeros - If needed, add leading zeros to maintain the decimal's position.
Therefore, 7.4 x 10^-6 in decimal form is 0.0000074.