In this question, it is given that the eighth term is 78 and the explicit formula is
And the recursive formula is
And we have to find the 20th term . And for that, we put 20 for x in the explicit formula. That is
Therefore on using the explicit formula, we will get 198 as the 20th term .
You would want to add all of the angles together to find the sum. Set this equal to 360.
2x-9 + 2x-9 + x + x + x = 360
Combine like terms,
7x-18 = 360
Add 18 to both sides,
7x = 378
Divvied both sides by 7,
x = 54
Answer:
6.24
Step-by-step explanation:
Rhombus has 2 axes of symetry (they contain diagonals).
If rhombus is a square then has 4 axes of symetry.
