Determine if the sequence below is arithmetic or geometric and determine the
common difference / ratio in simplest form.
20, 10, 5, ...

Answers

Answer 1

Answer:

geometric, with a common ratio of 1/2

Step-by-step explanation:

The sequence is geometric because you get successive trems by multiplying the previous term by a certain constant, the 'common ratio'. (If you got each successive term by adding or subtracting  the same constant number each time, that would be an arithmetic sequence.)

In this case, it looks like you get each successive term when you multiply the previous term by 1/2.

Thus, the common ratio is 1/2.


Related Questions

Find the perimeter of the shape on the grid pls help

Answers

Answer:

16.4

Step-by-step explanation:

I'm going to be honest, I don't really know how to explain this one. But the website GeoGebra can help with finding perimeter of shapes. You have to play around with it a bit to figure it out though.

hi im 7th grade and i feel like people think i smell when i do everything to not smell. i wake up take a shower with soap aplly deoderant and brush teeth. any tips

Answers

Answer:

Step-by-step explanation:

This might be a hygiene problem. What causes the unpleasant smell is the bacteria that build up on your sweaty skin and react with sweat and oils to grow and multiply when sweat reacts with bacteria on the skin. These bacteria break down proteins and fatty acids, causing body odor in the process. If deodorant isn’t good enough , I recommend perfume, the perfume smell lasts longer than deodorant I would think. But shower everyday, full clean down, but if ur hygiene is ok, I recommend going to the doctor for a checkup. Hopefully your problem will be resolved. Also use lotion.

what number is less than 15.22 Enter your answer as a decimal in the box​

Answers

Answer:

15.10 or -15.22

Step-by-step explanation:


[tex]\frac{1}{x {}^{2} - 3 } = \frac{ \sqrt{3} }{x + \sqrt{3} } - \frac{2}{ \sqrt{3} - x } [/tex]
can someone please solve this?

Answers

Answer:

[tex]\boxed{\textsf{ The value of x is \textbf{ 8 + 6}$\sqrt{3 }$.}}[/tex]

Step-by-step explanation:

Here we are given a equation which we need today simplify and solve for x .The given equation to us is :-

[tex]\sf\implies \dfrac{1}{x {}^{2} - 3 } = \dfrac{ \sqrt{3} }{x + \sqrt{3} } - \dfrac{2}{ \sqrt{3} - x } [/tex]

Let's simplify the equation :-

[tex]\sf\implies \dfrac{1}{x {}^{2} - 3 } = \dfrac{ \sqrt{3} }{x + \sqrt{3} } - \dfrac{2}{ \sqrt{3} - x } \\\\\sf\implies \dfrac{1}{x^2-3}=\dfrac{\sqrt3}{x+\sqrt3}-\dfrac{2}{-(x-\sqrt3)}\\\\\sf\implies \dfrac{1}{x^2-3}=\dfrac{\sqrt3}{x+\sqrt3}+\dfrac{2}{x-\sqrt3}\\\\\sf\implies \dfrac{1}{x^2-3}=\dfrac{\sqrt3(x-\sqrt3)+2(x+\sqrt3)}{(x+\sqrt3)(x-\sqrt3)}\\\\\sf\implies \dfrac{1}{x^2-3}=\dfrac{\sqrt3x-3+2x+2\sqrt3}{x^2-3}\\\\\sf\implies 1=\sqrt3x-3+2x+2\sqrt3 \\\\\sf\implies \sqrt3x+2x = 4-2\sqrt3\\\\\sf\implies x(\sqrt3 +2)=4-2\sqrt3\\\\\sf\implies x =\dfrac{4-2\sqrt3}{\sqrt3+2}\\\\\sf\implies x =\dfrac{ (4-2\sqrt3)(\sqrt3-2)}{(\sqrt3+2)(\sqrt3-2)}\\\\\sf\implies x =\dfrac{-8-6\sqrt{3}}{3-4}\\\\\sf\implies \boxed{\pink{\sf x =8+6\sqrt3}}[/tex]

plz plz plz HELP!
Based on the values in the table below, find the slope and y-intercept to write the equation of the line in the form y=mx+b ​

Answers

Answer:

y=11x

Step-by-step explanation:

ΔX = 2 – 1 = 1

ΔY = 22 – 11 = 11

How much charge is needed to repel another charge of 9.9 x 10^-6 N when they are 200m apart? Please help meee I really can't understand Coulomb's Law : (

Answers

Answer:

The charge needed will be [tex]q=6.6\: \mu C[/tex]

Step-by-step explanation:

The equation of the electric force is given by:

[tex]F=k\frac{qQ}{r^{2}}[/tex]

We have the force [tex]F = 9.9 10^{-6}\: N[/tex]  and the distance r = 200. k is the Coulomb constant. Q and q are the charges.

We assume we have the same charge of the particles,  so we have:

[tex]q^{2}=\frac{Fr^{2}}{k}[/tex]

[tex]q^{2}=\frac{9.9*10^{-6}200^{2}}{9*10^{9}}[/tex]

[tex]q=6.6*10^{-6}\: C[/tex]

Therefore, the charge needed will be [tex]q=6.6\: \mu C[/tex]

I hope it helps you!

In continuous type of series, for finding mean, which amongst the
following is considered as X variable value?
Select one:
O a lower limit of the interval
O b. upper limit of the interval
O c. mid point of the interval
O d. none of these

Answers

In the continuous type of series for determining the mean, the midpoint of the interval should be considered as the X variable value.

Continuous Series is the series where all types of class intervals with the frequency should be listed in the table form. Here all the class intervals do not contain a similar frequency.

For determining the mean, the direct method should be used in which the midpoint from X should be measured and the same should be relevant.

So, the following should not be relevant for determining the mean:

The lower limit and upper limit of the interval.

Therefore In the continuous type of series for determining the mean, the midpoint of the interval should be considered as X variable value.

Learn more about the mean here:brainly.com/question/11230531

Please help!! Brainliest for right answer!!

Answers

Answer:

(f o g)(x) = 4x^2 - 8

Step-by-step explanation:

(f o g)(x) = f(g(x))

f(x) = x^2 - 8

g(x) = 2x

f(g(x))

f(2x) = (2x)^2 - 8

       = 4x^2 - 8

(f o g)(x) = 4x^2 - 8

Which of the values below will make 3+x=21 true

Answers

Answer:

x=18

21-3=18

Step-by-step explanation:

Draw the mixed numbers label them

Answers

where’s the picture lol

The sum of the speeds of two trains is 718.4 miles per hour. If the speed of the first train is 3.6 mph faster than that of the second​ train, find the speeds of each

Answers

Answer:

the answer is 359.7

Step-by-step explanation:

What is a counterexample for 3/4 and 6/8

Answers

Answer:

While 3/4 and 6/8 are equivalent fractions, 3/4 and 6/8 of a pizza could represent different amounts.

can you help me in that problem​

Answers

Answer:

(x - 10, y - 13)

Step-by-step explanation:

We have two shapes on a graph and the question is asking for the translation of rhombus QRST to rhombus Q'R'S'T.

Looking at the graph we can see that not only does the rhombus move backwards, but also downward, this indicates that our answers will be in a subtracting symbol.

So all we have to do is count the amount of spaces rhombus QRST went to get to rhombus Q'R'S'T

Evaluate - 7x + y when x= -1 y= -9

Answers

Answer:

-2

Step-by-step explanation:

-7(-1)+(-9)

7+(-9)

-2

-2 is the correct answer to the question

Frederick’s pickup truck can carry up to 800 pounds. His truck already has a 350-lb. box loaded onto its tailgate. Frederick wants to haul some 75-lb. bags of concrete. Which inequality can be used to determine the greatest number of bags he can haul without exceeding his truck’s weight load capacity? A 350 + 75b ≥ 800 B 350 – 75b ≥ 800 C 350 + 75b ≤ 800 D 350 – 75b ≤ 800

Answers

Answer:

C

Step-by-step explanation:

Answer:

C.

Step-by-step explanation:

I did the Math activity

Independent Practice: Writing and Solving Two-Step Inequalities

2 9/10 as a decimal number

Answers

2 9/10 in decimal form would be,

[tex]2.9[/tex]

if you have any other questions like this,

let me know ill help you!!

Answer:

2 9/10=2.9

Step-by-step explanation:

We know that 9/10 is the same as 9÷10

Therefore:

2 9/10 = 2 + (9÷10)

Then using

Long Division for 9 divided by 10

we have

=2+0.9=2.9

Please give me brainliest because I worked hard on this answer and I am trying to level up

1) (2 points) Imagine a 21-gonal prism. How many total faces does this prism have? Provide a clear
and detailed justification for your answer, using appropriate vocabulary, that does not rely on a
formula.

Answers

Answer:  There are 23 faces total.

Explanation:

This is because there are 21 lateral faces, each of which are a rectangle. Then there are the 2 base faces which are each 21-gons. A 21-gon is a 21 sided polygon. So we have 21+2 = 23 faces total.

are
Which pair of angles
angles?
corresponding

Answers

Answer:

D. <3 and <7

Step-by-step explanation:

Corresponding angles are angles that are on matching sides and that are cut by a transversal.

Hope this helps!

Solve for the variable indicated
-4x-8y=36 solve for x

Answers

Answer:

x = -2y - 9

Step-by-step explanation:

First isolate the variable by putting the x on a side by itself.

-4x=36+8y (8y becomes positive when it changes sides)

Then divide the entire equation by -4 to make the x stand alone.

x = -9 -2y

Some teachers prefer the variables at the beginning of the equations so it could also read

x = -2y - 9

Hello there!

Question:-

[tex]-4x-8y=36[/tex]

We need to find the value of x.

Solution:-

[tex]\sf \longmapsto-4x-8y=36[/tex]

Firstly, Add 8y to both sides :-

[tex]\sf \longmapsto \: - 4x - 8y+8y=36+8y[/tex]

On Simplification:-

As (-) and (+) equals to (-),It Will be 8y-8y.Answer would be 0.

[tex]\sf \longmapsto \: - 4x - 0 = 36 + 8y[/tex]

[tex]\sf \longmapsto \: - 4x = 8y + 36[/tex]

Then, Divide both sides by -4:-

[tex]\sf \longmapsto \: \dfrac{4x}{ - 4} = \dfrac{8y + 36}{ - 4} [/tex]

On Simplification:-

[tex]\sf \longmapsto \: x = - 2y - 9[/tex]

______________________________________

Henceforth the value of x is :-

[tex] \boxed{\tt \: x = - 2y - 9}[/tex]

______________________________________

I hope this helps!

Please let me know if you have any questions.

~MisterBrian

Michael paid $10 for a six-pack of socks at the store. How much would one pair of those socks cost?

Answers

10/6 = 1.6666... per sock
so $1.67

At an assembly 6 out of the first 10 students who entered the gym were carrying a backpack. Based on this information, it 700 students were at the assembly, how many students could be expected to be carrying a backpack? pls give an answer no answer choices ASAP​

Answers

Answer:

Simple 700/10 is 70 right so multiply 6 by 70 which is 420 so 420 students out of 700. 420/700 ANSWER: 420 hope this is better

Step-by-step explanation:

Which of the following are magnitudes for rotational symmetry of the square below about the marked point?

Choose all answers that apply:

A : 45

B : 180

C : 270

D : None of the above

Answers

CCCCCCCCCCCCCCCCCCCCC

Answer:

b

Step-by-step explanation:

that was the right answer on khan academy

1/8 and 9/5 common denominator and solve the problem ​

Answers

Answer:

Step-by-step explanation:

You haven't stated a problem. Do you want to add the fractions together? Subtract them?

Least common multiple of 8 and 5 is 40.

1/8 = 5/40

9/5 = 72/40

1/8 + 9/5 = 5/40 + 72/40 = 77/40 = 1 37/40

To have 50,000 in 5 years, how much should you invest if the compound interest is 5%?​

Answers

ANSWER

47,500

STEP BY STEP:

Shannon rode her bike 6 miles in 24 minutes. Find her average rate in miles per hour.

HELP!

Answers

Answer:

.25 Mph

Step-by-step explanation:

6 divided by 24

=

0.25

if the water bill costs 487.75.and the electict bill costs 952.50.how much will be needed to pay for the bill?
1.what is asked?
2.what are given?
3.what operation will be used?
4.what is the number sentence?
5.what is the sulotion and answer?

Answers

1. it is asked to find how much will be needed to pay for the bill

2. 487.75 952.50

3. multiply

4. I don't know

5. 487.75 multiplied by 952.50 equals 464,581.875

andre and Elena are each saving money. Andre starts with $100 in his savings account
nd adds $5 per week. Elena starts with $10 in her savings account and adds $20 each
jeek.
1. Write an equation in y= mx + b form to represent at what rate Elena and Andre are
aving their money.
Y=mx+b

Answers

Answer:

Andre  y=5x+100

Elena y=20x+10

the rate Elena is 20

the rate  Andre is 5

Step-by-step explanation:

If I have a 75% chance of winning a bet, what would the odds be that I WON'T be profiting after 15 bets? (Assume I bet the same amount each bet)

Answers

Answer:

Yes

Step-by-step explanation:

How many times you do it it would still be 75%

for the following exercises, identify the type of data that would be used to describe a response (quantitative discrete, quantitative continuous, or qualitative), and give an example of the data.
14. distance to the closest movie theater
16. number of competing computer spreadsheet software packages

Answers

Answer:

14: quantitative continuous

16: quantitative discrete

Step-by-step explanation:

Distance can be any non-negative real number, hence it is continuous.

The number of packages has to be a positive integer, hence is discrete.

what is the term or answer for−3x − 6 + (−1)

Answers

Answer:

-3x-7

Step-by-step explanation:

Answer:

-3x-6+(-1)

-3x-7

X= -7÷-3

x=2.3

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