Answer:
This is how I figured it out:
- 215.5 rounded to one significant figure is 200
- 101.02555 rounded to one significant figure is 100.
- 200 + 100 = 300.
Hope this helps!
Explanation:
Sound travels better in water
Yes you can make sunglasses from 3d glasses
Tuba - Alloy
Paper - Polymer
Pot - Ceramics
Alloy : An alloy is a substance which made up of two more than two types of metal.
Ceramics: Articles, figures made up of clay which are hardened by the action of heating.
Polymer: These are the substance composed repeating units of of same chemical units which held together by covalent bonds.
<h3>What are Synthetic materials ?</h3>
Instead of using natural materials, synthetic products are created using chemicals or synthetic materials. Boots constructed of synthetic materials, such as synthetic rubber, may typically be washed in a machine.
- Because they differ significantly from natural materials in terms of their qualities or have improved through time, synthetic fabrics are beneficial. For instance, elastic Lycra maintains its shape in waterproof plastic raincoats, which are also made of plastic.
Learn more about Synthetic materials here:
brainly.com/question/25834689
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