The area of a rectangular piece of cardboard is 36 sq cm and its length is 9 cm. What is the width of the cardboard
1 answer:
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The answer is 0.0025kg/0.01m^3
Answer: 23.9
Step-by-step explanation:
1. First, you must calculate the mean, as following:
2. Now, you should substract the means obtained to every single number of the set and then square it. Add all of them:
3. The mean of this is:
4. The square root of this result is:
5. To the nearest tenth, the result is: 23.9