Answer:

Step-by-step explanation:
we know that
The formula to find the sum is equal to

where
a1 is the first term
an is the last term
n is the number of terms
In this problem we have



substitute the values in the formula

Do me do me do me.............
The answer is A
Step-by-step explanation:
The solution and explanation is pinned
Answer:
B1: -9, -3, and 10
B2: 5
Step-by-step explanation:
mark brainliest
A square simply means a shape that has four equal sides and four equal angles.
<h3>How to illustrate the square?</h3>
Your information is incomplete. Therefore, an overview of a square will be given.
A square is a quadrilateral. It's also a rectangle that has two equal length adjacent sides. The four angles are equal to 90° each and are congruent to each other.
Learn more about squares on:
brainly.com/question/25092270
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