\( 876.000 + \pm 129.872 \)

When dealing with uncertainties in measurements, particularly in scientific contexts, it’s important to understand how to properly combine them. Here, \( 876.000 \) represents a measured value, while \( \pm 129.872 \) signifies the uncertainty. To express the result, you would write it as \( 876.000 \pm 129.872 \), which indicates that the true value could range between \( 746.128 \) and \( 1005.872 \). This notation is crucial in fields like physics and engineering, where precision matters! In practical terms, when performing calculations that involve uncertainties, remember to carry the uncertainty through all your calculations. A common mistake is neglecting to apply the appropriate rules for addition and subtraction of uncertainties, leading to incorrect conclusions. Always double-check not just the values but also the uncertainties to ensure accuracy!