One of the numbers are negative
Remember this... a negative divided by a positive will result in a negative and a negative divided by a negative will result in a positive, the same goes for multiplication
Answer:
of, relating to, or according to the methods or principles of geometry
increasing in a geometric progression.
the study of properties of given elements that remain invariant under specified transformations
explanation:
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Answer:
The answer is 7
Step-by-step explanation:
3 1/2 ÷ 1/2 = 7
This is known as Einstein's proof, not because he was the first to come up with it, but because he came up with it as a 15 year old boy.
Here the problem is justification step 2. The written equation
BC ÷ DC = BC ÷ AC
is incorrect, and wouldn't get us our statement 2, which is correct.
For similar triangles we have to carefully pair the corresponding parts to get our ratios right:
ABC ~ BDC means AB:BD = BC:DC = AC:BC so BC/DC=AC/BC.
Justification 2 has the final division upside down.
