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Romashka [77]
3 years ago
13

If the reclusive rule for a geometric sequence is a1 = 6 an = 2an-1.

Mathematics
1 answer:
laila [671]3 years ago
3 0

\text{The explicit rule of geometric sequence}\\\\a_n=a_1 r^{n-1}\\------------------------------\\\text{We have the recursive form}\ a_1=6,\ a_n=2\cdot a_{n-1}.\\\\\text{Therefore}\ r=2.\ \text{Substitute:}\\\\a_n=6\cdot2^{n-1}=6\cdot2^n\cdot2^{-1}=6\cdot2^n\cdot\dfrac{1}{2}=\boxed{3\cdot2^n}

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How to make an equation with numbers 0.25, 7.00, and 27
shepuryov [24]
There are many ways to do this.

One way could be 0.25x+7.00=27
8 0
4 years ago
What is 6 3/4, 6 5/8, 3 1/4, 3 3/8 from least to greatest?
weeeeeb [17]

Answer:

3 1/4, 3 3/8, 6 5/8, 6 3/4

Step-by-step explanation:

4 0
3 years ago
Plsss help ill give brainiest
Elena L [17]

To solve this problem, we have to use the area of both gauze or the dimensions on each gauze and compare them. we can see that the sheets are not similar as they have different areas.

<h3>Area of Rectangle</h3>

The area of a rectangle is given as the product between the length and it's width.

Data;

  • Length = 9in
  • Area = 45in^2
  • width = ?
  • length 2 = 4in
  • width 2 = 3in

area = length * width

In the first gauze, the area is given as 45in^2 and we have value of the length. To find the width of the first gauze can be calculated as

A = length * width\\width = \frac{area}{length} \\width = \frac{45}{9} \\width = 5in

We can see that the width are not equal so is their length.

But if we would truly compare them, the accurate way to do that is by their area

The area of the second gauze is given by

a = 3 * 4 = 12in^2

From the above calculations, we can see that the sheets are not similar as they have different areas.

Learn more on area of a rectangle here;

brainly.com/question/25292087

3 0
2 years ago
Using the segment addition postulate, which is true? A number line going from negative 9 to positive 9. A closed circle appears
MArishka [77]

Answer:

  BC + CD = BD

Step-by-step explanation:

The segment addition postulate tells you that when a segment is divided into two parts, the sum of the lengths of the first part of the divided segment and the second part of the divided segment will be equal to the length of the whole segment.

If point C divides segment BD into BC and CD, then the sum of those two segments will match the whole.

4 0
3 years ago
Read 2 more answers
Barbara runs once around the track in 3 minutes 45 seconds. Liad runs around the track in 2
seropon [69]

Answer:

2/3rds of liad's run

Step-by-step explanation:

3 min 45s = 3 3/4 min = 15/4 min; 10/(15/4) = 8/3 laps

2min 30s = 2 1/2 min = 5/2 min; 10/(5/2) = 4 laps

(8/3)/4 = 2/3

3 0
2 years ago
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