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natta225 [31]
2 years ago
13

What is TR(39)? pls help this is going to be on my exam...

Mathematics
1 answer:
musickatia [10]2 years ago
3 0

Answer:

780

Step-by-step explanation:

So when you're adding consecutive numbers like this. 1+2+3...+39. You add 39 and 1. This is 40. 2+38 is 40. This is a pattern. Now, we do 40 multiplied by 39 and this will give you the number 1620. After this you would have to divide this product by 2. The answer will soon be 780.

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Step-by-step explanation:

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