Upper and lower bound
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- Evaluating the Upper and Lower Bounds
Find the upper and lower bounds for each of the following scenarios:
- Understanding the Limits of Accuracy
In Sylvia's garden, the average width of a willow tree trunk is 136cm while that of a maple tree trunk is 172cm, both numbers corrected to the nearest centimeter. Find the greatest possible difference in their widths.
- A rectangle with length 7cm and width 3cm is given. If both sides are measured to the nearest cm, find the smallest possible area.
- Michael takes 43s, to the nearest second, to finish a 400m sprint, measured to the nearest 10m. What is his fastest possible average speed?