1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
nikdorinn [45]
2 years ago
14

Which sequences are geometric? Check all that apply. –2, –4, –6, –8, –10, … 16, –8, 4, –2, 1 –15, –18, –21.6, –25.92, –31.104, …

4, 10.5, 17, 23.5, 30, … 625, 125, 25, 5, 1, …
Mathematics
2 answers:
julsineya [31]2 years ago
6 0
16,-8,4,-2,1
-15,-18,-21.6,25.92,-31.104...
625,125,25,5,1
LiRa [457]2 years ago
5 0

Given sequences :

–2, –4, –6, –8, –10,...

16, –8, 4, –2, 1 , ......

–15, –18, –21.6, –25.92, –31.104, …

4, 10.5, 17, 23.5, 30, …

625, 125, 25, 5, 1, ….

Let us find the ratios.

–2, –4, –6, –8, –10,...

First sequence is just being decreased by -2. So it would be an Arithmetic sequence.

16, –8, 4, –2, 1 , ......

16/-8 = -2 and 4/-2 = -2.

In second sequence we got common ratio -2. Therefore, it's a geometric sequence.

–15, –18, –21.6, –25.92, –31.104, …

-15/-18 = 0.833

–21.6/ -18 = 0.833.

In second sequence we got common ratio 0.833. Therefore, it's a geometric sequence.

4, 10.5, 17, 23.5, 30, …

10.5/4 ≠ 17/10.5

Ratios are not same. So, it's not a geometric sequence.

625, 125, 25, 5, 1, ….

125/625 = 0.2 = 25/125.

<h3>In fourth sequence we got common ratio 0.2. Therefore, it's a geometric sequence.</h3>
You might be interested in
Can you please help me​
Dmitry_Shevchenko [17]

Answer:

55 degrees

Step-by-step explanation:

angle adds up to 360. your equation would be 360 = 2(125) + 2(angleN)

7 0
2 years ago
To solve a problem, a student had to find a certain angle θ. The student got to the
stira [4]

Answer:

see explanation

Step-by-step explanation:

sinΘ is only valid for values in the interval

- 1 ≤ Θ ≤ 1

sinΘ = \frac{5}{2} is outwith this interval and is not valid

3 0
3 years ago
A test was given to a group of students. The grades and gender are summarized below
jasenka [17]

Answer:

<h3>★ <u>11/30</u> is the right answer. ★</h3>

Step-by-step explanation:

  • Number of male students who got 'A' in the test is 11
  • Number of female students who got 'A' in the test is 19
  • Total students who got 'A' in the test is 30
  • Probability that the male student got an 'A' is P(A | male) = (Number of male students who got 'A' in the test)/(Number of total students who got 'A' in the test) = <em><u>11/30</u></em>
4 0
3 years ago
A tire travels about 75 inches in one full rotation. What is the Demeter of the tire, to the nearest inch?
Gnoma [55]

Answer:

<h2><u>24 inches</u></h2><h2><u></u></h2>

Step-by-step explanation:

c = πd

75 = 3.14d

Divide both sides by 3.14

23.89 = d

Rounded

24 inches

5 0
2 years ago
Two point particles are attached to each other via a light in-extensible string that passes over a ring hanging from the ceiling
arlik [135]

a. The expression for the tension in the string is T = mg

b. The expression for the tension in the chain is T = 2mg

To solve the problem, we need to know what tension is.

<h3>What is tension?</h3>

This is the opposing force in a stretched material.

<h3>a. Tension in the string</h3>

The expression for the tension in the string is T = mg

Since the string supports the weight of the object, the tension in the string equals the weight of the particle.

Let

  • T = tension in sring and
  • W = weight of particle = mg where
  • m = mass of particle and
  • g = acceleration due to gravity

So, T = W

T = mg

So, the expression for the tension in the string is T = mg

<h3>b. Tension in chain</h3>

The expression for the tension in the chain is T = 2mg

<h3 />

Since the chain supports both strings, the tension in the chain equals the tension in both strings.

Let

  • T' = tension in chain and
  • T = tension in each string

So, T' = T + T

T' = 2T

T' = 2W

T' = 2mg

So, the expression for the tension in the chain is T = 2mg

<h3 />

Learn more about tension here:

brainly.com/question/24994188

5 0
2 years ago
Other questions:
  • G(X)= 6X - 3<br> What is g-1 (9)
    6·1 answer
  • Park rangers released 4 fish into the pond in year 0. Each year, there were three times as many fish as the year before. How man
    9·2 answers
  • Find two different planes whose intersection is theline:x = 6 + 3ty = -8 - 3tz = -1 - tWrite equations for each plane in the for
    8·1 answer
  • Measurements of regular hexagon
    6·1 answer
  • Helpppp pleaseeeeeeeeeeeeeee
    13·1 answer
  • Why is 5 a day the color way important to know and understand?​
    5·1 answer
  • Find the quotient 12/15÷6/11​
    10·1 answer
  • Which is the equation that can be used to find the volume of any prism?<br> (Geometry)
    5·1 answer
  • Jerry wants to buy a pool that that has a volume of 500 cubic feet.The base area of the pool is 100 square feet.How deep is the
    5·1 answer
  • For a parallel structure of identical​ components, the system can succeed if at least one of the components succeeds. Assume tha
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!