Final answer:
To subtract numbers in scientific notation with the same exponent, you simply subtract the coefficients. The resulting calculation, (5.9×10^-4) − (1.8×10^-4), is equal to 4.1×10^-4.
Step-by-step explanation:
The question asks to subtract two numbers expressed in scientific notation: (5.9×10−4)−(1.8×10−4). Subtracting numbers in scientific notation involves ensuring the exponents are the same and then subtracting the coefficients. Both numbers in the question already have the same exponent, so we can subtract the coefficients directly:
5.9×10−4 − 1.8×10−4 = (5.9 − 1.8)×10−4 = 4.1×10−4
This gives us the final answer of 4.1×10−4, which is in proper scientific notation.