I wrote the formulas for arithmetic sequence summation. The sum should be -3077
Answer ??? anyone knows it
2 answers:
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Answer:
74
Explanation:
28+2*(24-1)= 74
Given:- There are 28 seats in the front row of theater
Number of rows=24
To find:- The number of seats in the last row.
Use the formula to find the 24th term of this sequence.
Also each successive row has two more seats. This difference is same for the whole theater.
So, this forms an arithmetic sequence.
a1=21
D=2
We need to find number of seats in 24th row; which is given by a24
We use the formula for it
Answer:
tangent of angle I = /
) or
Explanation:
tangent = opposite/adjacent
we need to solve for the opposite side, using pythagorean theorem
()^2 + b^2 = 9^2
59 + b^2 = 81
b^2 = 22
b =
tangent = opposite/adjacent
tangent of angle I = /
) or