Answer:
36.07
Step-by-step explanation:
Method 1:




Method 2:



Both solutions point to the same answer, so we can confirm it's correct
Answer:
I will let you answer this after reading below
Step-by-step explanation:
a=area


write a in terms of d

since it's a semicircle divide a by 2 and that's your answer
I can confirm you answer if you like in a comment
Note: It seems the first term of your sequence is 7 instead of 2. So, I am assuming you meant the sequence such as;
7, 12, 17, 22, 27
Answer:
The expression for the nth term of the givens sequence is:
Step-by-step explanation:
Given the sequence
7, 12, 17, 22, 27
Here, the first element of the sequence is:

An arithmetic sequence has a constant difference 'd' and is defined by

computing the differences of all the adjacent terms

The difference between all the adjacent terms is the same and equal to

so substituting d = 5 and
in the nth term to determine the expression



Therefore, the expression for the nth term of the givens sequence is: