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faltersainse [42]
3 years ago
11

What is the recursive formula for this geometric sequence?

Mathematics
2 answers:
iogann1982 [59]3 years ago
8 0
B is the answer because first number is 2 and common ratio is - 5
Tanzania [10]3 years ago
4 0

Answer: B.

a_1=2\\a_n=a_n\times(-5)

Step-by-step explanation:

The given geometric sequence : 2, -10, 50, -250

The first term of the sequence : a_1=2

The common ratio between the terms :r=\dfrac{-10}{2}=-5

We know that the recursive formula for geometric progression is given by :-

a_n=a_{n-1}r

Then , the recursive formula for the given geometric progression will be :-

a_n=a_n\times(-5)

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Likurg_2 [28]

Answer:

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A bike rental stand at the beach charges $5 to rent a bike then charges $2 every half hour it is rented is someone pay $70 for t
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M is between L and N. If LN = 91 and LM = 23, find MN.
Tasya [4]

Answer:

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A rectangular billboard is 9.35 meters wide and 6.82 meters tall. What is the perimeter of the billboard in meters?
White raven [17]

Answer:

32.34 meters

Step-by-step explanation:

All you need to do is label the rectangle with the information given. 9.35 for width, and 6.82 for length.

Next, just fill in the other sides and add. Because it's a rectangle, then you should be able tp label the blank sides.

Next, just add all the sides together and then you'll get your perimeter!                                                    

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