Answer:
-12,-9,8,10,12,16
Step-by-step explanation:
This question is incomplete, here is the complete question
What is the recursive formula for this geometric sequence 2, -10, 50, -250, .... ?
The recursive formula for this geometric sequence is:
= 2;
= (-5) • ![a_{n-1}](https://tex.z-dn.net/?f=a_%7Bn-1%7D)
Step-by-step explanation:
To find the recursive formula for a geometric sequence:
- Determine if the sequence is geometric (Do you multiply, or divide, the same amount from one term to the next?)
- Find the common ratio. (The number you multiply or divide.)
- Create a recursive formula by stating the first term, and then stating the formula to be the common ratio times the previous term.
The recursive formula is:
= first term;
= r •
, where
is the first term in the sequence
is the term before the nth term - r is the common ratio
∵ The geometric sequence is 2 , -10 , 50 , -250
∴
= 2
- To find r divide the 2nd term by the first term
∵ ![r=\frac{a_{2}}{a_{1}}](https://tex.z-dn.net/?f=r%3D%5Cfrac%7Ba_%7B2%7D%7D%7Ba_%7B1%7D%7D)
∴ ![r=\frac{-10}{2}=-5](https://tex.z-dn.net/?f=r%3D%5Cfrac%7B-10%7D%7B2%7D%3D-5)
- Substitute the values of
and r in the formula above
∴
= 2;
= (-5) • ![a_{n-1}](https://tex.z-dn.net/?f=a_%7Bn-1%7D)
The recursive formula for this geometric sequence is:
= 2;
= (-5) • ![a_{n-1}](https://tex.z-dn.net/?f=a_%7Bn-1%7D)
Learn more:
You can learn more about the geometric sequence in brainly.com/question/1522572
#LearnwithBrainly
The area of the cheese is 8 square inches. to find out the sides, you must find the square root of 8. √8 = 2.82.
Answer:
13x-27
Step-by-step explanation:
Simplify the expression.
Answer:
3 7/9
Step-by-step explanation:
we have
3.77777... -----> is a repeating decimal
Let
x=3.7...
so
10x=37.7...
10x-x=37.7...-3.7...
9x=34
x=34/9
Convert to mixed number
34/9=(27/9)+((7/9)=3+(7/9)=3 7/9