Explanation:
- area of rectangle=l×b
2.area of rectangle=l×b
3. perimeter of square=4×L
4. perimeter of rectangle=2(L+b)
- 14=2(4+b)
- 14=8+2b
- 2b=6
- b=3cm
hope it helps.
False
Explanation:
The best way to ensure scientific claims are valid is to subject them to various tests. Scientific claims has nothing to do with the body presenting them. Claims are authenticated following due scientific process.
- Scientific method provides a way of ascertaining the validity of an assumption.
- If the claims is not supported by the body of evidence obtained, then the claim has to be modified or refuted.
- When the claim is consistent with various infallible proof from different sources, then it can be accepted.
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Answer: True. The three factors are as stated above
The attachments dont work, they say that they have been taken down or sum... ?
Na2C03 is formed through the reaction of
NaOH and H2CO3 namely sodium hydroxide and carbonic acid
NaOH -> strong base
H2CO3-> weak acid
