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4 years ago

Help and hurry !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Mathematics

2 answers:

denpristay [2]4 years ago

5 0

Answer:

The expression is, B)

Step-by-step explanation:

Since, the sum of an A.P. is,

Where, n is the number of terms,

a is the first term of the A.P. ,

is the last term of the A.P. ,

Here, we have given,

a = 102, = 159, and n = 20,

Thus, the sum of the given A.P. is,

Which is the required expression.

Allushta [10]4 years ago

3 0

I’m pretty sure it’s the 4th one

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