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victus00 [196]
3 years ago
7

The first term of a geometric series is 124. The sum to infinity is 64 . Find the common ratio​

Mathematics
1 answer:
zalisa [80]3 years ago
7 0

9514 1404 393

Answer:

  -15/16  

Step-by-step explanation:

The sum of a geometric series with first term a1 is ...

  S = a1/(1 -r)

Then the common ratio (r) is ...

  r = 1 -a1/S

For the given values, the ratio is ...

  r = 1 - 124/64 = -15/16

The common ratio is -15/16.

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a club put its members into 5 groups for an activity. After 7 student have to leave early, there are only 3 students left to fin
Zanzabum

Answer:

2 students in each group

Step-by-step explanation:

If there were 5 groups and after a while 7 students leave early and 3 students remain to do the activity, if you add 7 + 3 = 10 divide it by 5, the number of groups in the activity, you would get 2 students in each group.

6 0
3 years ago
Read 2 more answers
Can some please help me with this one it would be much appreciated
kherson [118]

πAnswer:

Therefore, the area of a sector of a circle would be 13.5π square units.              

Step-by-step explanation:

Given

  • r=9 mi
  • Ф = 60°

The area of a sector of a circle is:

A = π r² Ф/360

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A = 13.5π square units

Therefore, the area of a sector of a circle would be 13.5π square units.                        

7 0
2 years ago
I will give u brainiest if ur correct and your first correct.
marissa [1.9K]
The answer to the first part is 26 i think

Bc 6-10 theres 10 and 10-15 theres 16
3 0
3 years ago
Read 2 more answers
Please help me in with these two questions Geometry.
horrorfan [7]

Answer:

#1 is A #2 is A

Step-by-step explanation:

5 0
2 years ago
Helps me solve this problem please
AysviL [449]

Answer:

The slope is -3/7 so B

Step-by-step explanation:

Just turn this into slope-intercept form.

what you do is subtract 3x so that it's moved to the right side.

It should look like this -7y = 12 - 3x

Then just divide all numbers by 7 so everything is simplified

It should look like this y = -3/7x - 12/7

pls mark brainliest because i didn't waste you time lol

8 0
3 years ago
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