The answer is : Sn = S(n-1) + n
Answer:
C
Step-by-step explanation:
Using rule of negatives and positives:
The rules for multiplication and division are simple: If both numbers are positive, the result is positive. If both numbers are negative, the result is positive. If one number is positive and the other is negative, the result is negative.
This is why C is the correct statement
There is no name for this triangle....
None of the triangle has <span>interior angles each measure 90 degrees
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