Question

answer the following problem using the correct number of sig figs (decimal places)0.085 cm + 0.062 cm + 0.14 cm

Answer 1

To find the sum with correct significant figures, add 0.085 cm, 0.062 cm, and 0.14 cm to get 0.287 cm, and then round to two decimal places, resulting in 0.29 cm.

Step-by-step explanation:

The question asks for the sum of 0.085 cm, 0.062 cm, and 0.14 cm with the correct number of significant figures. The rule for addition and subtraction is that the result must have the same number of decimal places as the measurement with the least number of decimal places. Here's how the calculation is done, step-by-step:

1. First, add the three numbers: 0.085 cm + 0.062 cm + 0.14 cm = 0.287 cm.
2. Then, since the number with the least number of decimal places is 0.14 cm (with two decimal places), you must round the sum to two decimal places.
3. The final answer, rounded to two decimal places, is 0.29 cm.