n
=
1

4
(
1
3
)
n

1

Answers

Answer 1

Answer:

6

Step-by-step explanation:

The correct notation is: Summation from n = 1 to infinity of the expression:

[tex]4(\frac{1}{3} )^{n-1}[/tex]

If we expand this notation, we will find that the given summation represent the terms of a G.P and we have to find the sum of infinite terms of a G.P. By placing n=1,2,3,4,... we can find the first few terms as shown below:

[tex]4(\frac{1}{3} )^{1-1}=4\\\\ 4(\frac{1}{3} )^{2-1}=4(\frac{1}{3} ) \\\\ 4(\frac{1}{3} )^{3-1} =4(\frac{1}{3} )^{2}[/tex]

Its obvious from the above result, that the given summation represent a G.P with first term equal to 4 and common ratio of 1/3. The formula of infinite G.P is:

[tex]S=\frac{a_{1} }{1-r}[/tex]

Using the value of a1 = 4 and r = 1/3 we can calculate the given summation

[tex]S=\frac{4}{1-\frac{1}{3} }=6[/tex]

Therefore, the given summation is equal to 6.


Related Questions

Find y and x values please

Answers

(-2,6) iissssssss the answer

Do I multiply all together, please

Answers

Answer:

40 m

Step-by-step explanation:

A= b(h)

A= 8(5)

A= 40 m

Answer:

It is a parallelogram and the area is 40.

Step-by-step explanation:

The area of a parallelogram is a=bh.

The base is 8 and the height is 5. All you do is times 8 and 5 to get 40.

How do I find the Axis of Symmetry for a parabola

Answers

Answer:

Explanation given below.

Step-by-step explanation:

The first step is to put the parabola in the form  [tex]ax^2+bx+c[/tex] , which is the standard form of a parabola

Note: a is the coefficient before x^2 term, b is the coefficient before x term, and c is the independent constant term

The axis of symmetry divides the parabola symmetrically. The axis of symmetry has the equation  [tex]x=-\frac{b}{2a}[/tex]

Where a and b are the respective values shown above

So, that is how you get the axis of symmetry of any parabola.

Answer:

The equation of the axis of symmetry of the parabola is x = h,

 where h is the x-coordinate of the vertex point

Step-by-step explanation:

* The axis of symmetry is the line which divides the

 shape into two congruent parts

* The general form of the quadratic equation is:

 ax² + bx + c = 0

* The quadratic equation is represented graphically by parabola

∵ The parabola has minimum point or maximum point

∴ The axis of symmetry of the parabola is passing through this point

   This point is called the vertex point or the turning point

- Lets find this point:

* the x-coordinate of this point calculated from the equation

 x- coordinate of the vertex point h = -b/2a

- where b is the coefficient of x and a is the coefficient of x²

∴  The equation of the axis of symmetry of the parabola is x = -b/2a

EX:

- If ⇒ x² - 4x + 4 = 0

∵ a = 1 , b = -4

∴ h = -(-4)/2(1) = 2

∴ The equation of the axis of symmetry of the parabola is x = 2

The graph show you the axis of symmetry

there are 60 girls and 45 boys who want to participate in a co-ed basketball tournament. if each team must have the same number of girls and boys, what is the greatest number of team that csn enter? how many girls and.boys would be on each of those teams?

Answer 1 the greatest of team that can enter are—— teams
Answer 2, there would be—- girls and —-boys on each team.

Answers

Answer:

15 teams, 4 girls and 3 boys on each team.

Step-by-step explanation:

What's the greatest common multiple of 60 and 45?  It's 15.

This is the greatest number of teams that can be formed.

60/15 = 4; thus, there will be 4 girls on each team.

45/15 = 3; thus, 3 boys on each team

The greatest number of co-ed basketball teams that can be formed with an equal number of girls and boys is 3, with each team consisting of 4 girls and 3 boys.

To determine the greatest number of co-ed basketball teams that can enter the tournament with an equal number of girls and boys, you need to find the greatest common divisor (GCD) of the number of girls and boys. In this case, we have 60 girls and 45 boys. The GCD of 60 and 45 is 15, which means the largest number of teams that can be formed where each team has the same number of girls and boys is 15 (since 60 \/ 15 = 4 girls per team and 45 \/ 15 = 3 boys per team).

Answer 1: The greatest number of teams that can enter are 3 teams.

Answer 2: There would be 4 girls and 3 boys on each team.

Can you guys help!! Have 8 more mins two finish

Answers

Answer:

60 / 120 is terminating, the rest are repeating.

Answer:

56/72 is repeating, 21/22 is repeating, 11/121 is repeating, and 60/120 is terminating

Step-by-step explanation:

The bar graph and line plot show the same temperatures. Where should you look to find the least common temperature?

Answers

Answer:

Step-by-step explanation:

AThe shortest column of the line plot

BThe shortest bar of the bar graph

CThe column farthest to the left on the line plot

DThe average bar height of the bar graph

Answer:

The shortest column of the line plot

Rewrite the quadratic function in vertex form.
Y=3x^2-12x+4

Answers

Answer:

[tex]\large\boxed{y=3(x-2)^2-8}[/tex]

Step-by-step explanation:

The vertex form of an equation of a parabola y = ax² + bx + c:

[tex]f(x)=a(x-h)^2+k[/tex]

(h, k) - vertex

[tex]h=\dfrac{-b}{2a},\ k=f(h)[/tex]

We have the equation:

[tex]y=3x^2-12x+4\\\\a=3,\ b=-12,\ c=4[/tex]

Substitute:

[tex]h=\dfrac{-(-12)}{2(3)}=\dfrac{12}{6}=2\\\\k=f(2)=3(2^2)-12(2)+4=3(4)-24+4=12-24+4=-8[/tex]

Finally:

[tex]y=3(x-2)^2+(-8)=3(x-2)^2-8[/tex]

Jacintas teacher asks her to find the tangent of angle y. what is her error

Answers

Answer:

what is her error?

Step-by-step explanation:

Answer:

Do you have a picture?

Please help me,Asap​

Answers

Answer:

2. y = 25 km

Step-by-step explanation:

To find the dimensions, write a proportion. A proportion is an equation of ratios.

[tex]\frac{scale}{factor} = \frac{Actual}{Model}[/tex]

Then solve for the unknown value by cross multiplying.

2. [tex]\frac{2}{5} = \frac{10}{y}[/tex]

2y = 5*10

2y = 50

y = 25

How can i do this one ☝️

Answers

Hey there!

Let's start by adding 5 to both sides. This eliminates the -5.  

1 = r/20

Now to solve for r we can multiply both sides by 20.

20 = r

Check

-4 = 20/20 - 5

-4 = 1 - 5

-4 = -4

Your answer is r = 20.

Hope this helps!

Answer:

20

Step-by-step explanation:

-4 = [tex]\frac{r}{20}[/tex] - 5

⇒ -4 + 5 = [tex]\frac{r}{20}[/tex]

⇒ 1 = [tex]\frac{r}{20}[/tex]

⇒ 1 × 20 = r

20 = r

If you could please show all your steps that would be great.

Answers

a. Angles ABC and CBD are supplementary, so you know that [tex]m\angle ABC=180^\circ-24^\circ=156^\circ[/tex]

The interior angles of any triangle sum to 180 degrees in measure, so that [tex]m\angle ACB=180^\circ-156^\circ-16^\circ=8^\circ[/tex].

By the law of sines, we then have

[tex]\dfrac{\sin8^\circ}{7600\,\mathrm{ft}}=\dfrac{\sin16^\circ}{BC}\implies BC=\dfrac{(7600\,\mathrm{ft})\sin16^\circ}{\sin156^\circ}\approx15052\,\mathrm{ft}[/tex]

b. In triangle BCD, we have

[tex]\sin24^\circ=\dfrac{CD}{BC}[/tex]

and so

[tex]CD=\sin24^\circ\dfrac{(7600\,\mathrm{ft})\sin16^\circ}{\sin8^\circ}\approx6122\,\mathrm{ft}[/tex]

Suppose you had d dollars in your checking account. You spent $20 but have at least $55 left. How much money did you have initially? Write, solve, and graph an inequality that represents this situation.

Answers

Answer:

Step-by-step explanation:

55-20 is less than or equal to (d)

i think...

Answer:

The solution would be d ≥ 75

Step-by-step explanation:

To find this we know that we have at least 55, which can be modeled as:

d ≥ 55

And then we need to add 20

d ≥ 55 + 20

d ≥ 75

August is making dinner for 8 people. She opens 7 cans of soup, how much soup will each person get? Use numbers and words to explain your awnser

Answers

Answer:7/8

Step-by-step explanation:

7 divided by 8 = 7/8

if you split that with 8 people, you multiply 7/8 and 8, and you'll get 7, which is the number of soup cans you started with.

Solve the inequality
7x + 3 > 10
A x>1
B x<1
C x>=1
D x> 13/7

Solve the inequality
-3 + 5x < 7x - 5
A x>4
B x<4
C x>1
D x<1

Solve the inequality
-2x + >= 3x + 20
A x=<15
B x=<3
C x>= 3
D x=< -3

Answers

Answer:

[tex]\large\boxed{Q1.\ x>1}\\\boxed{Q2.\ x>1}\\\boxed{Q3.\ x\leq-3}[/tex]

Step-by-step explanation:

[tex]Q1.\\7x+3>10\qquad\text{subtract 3 from both sides}\\\\7x+3-3>10-3\\\\7x>7\qquad\text{divide both sides by 7}\\\\\dfrac{7x}{7}>\dfrac{7}{7}\\\\\boxed{x>1}\\\\Q2.\\-3+5x<7x-5\qquad\text{add 3 to both sides}\\\\-3+3+5x<7x-5+3\\\\5x<7x-2\qquad\text{subtract 7x from both sides}\\\\5x-7x<7x-7x-2\\\\-2x<-2\qquad\text{change the signs}\\\\2x>2\qquad\text{divide both sides by 2}\\\\\dfrac{2x}{2}>\dfrac{2}{2}\\\\\boxed{x>1}[/tex]

[tex]Q3.\\-2x+5\geq3x+20\qquad\text{subtract 5 from both sides}\\\\-2x+5-5\geq3x+20-5\\\\-2x\geq3x+15\qquad\text{subtract 3x from both sides}\\\\-2x-3x\geq3x-3x+15\\\\-5x\geq15\qquad\text{change the signs}\\\\5x\leq-15\qquad\text{divide both sides by 5}\\\\\boxed{x\leq-3}[/tex]

x>1

x>1

X>-3

Step-by-step explanation:

Item 1 A bag contains 7 blue cards, 4 green cards, 6 red cards, and 8 yellow cards. You randomly choose a card. a. How many possible outcomes are there?

Answers

Answer:

4 possible outcomes

Step-by-step explanation:

we know that

The probability of an event is the ratio of the size of the event space to the size of the sample space.  

The size of the sample space is the total number of possible outcomes  

The event space is the number of outcomes in the event you are interested in.  

so  

Let

x------> size of the event space

y-----> size of the sample space  

so

[tex]P=\frac{x}{y}[/tex]  

In this problem

The probability of choose a blue card is

[tex]x=7[/tex]

[tex]y=7+4+6+8=25[/tex]

substitute

[tex]P=\frac{7}{25}[/tex]

The probability of choose a green card is

[tex]x=4[/tex]

[tex]y=7+4+6+8=25[/tex]

substitute

[tex]P=\frac{4}{25}[/tex]

The probability of choose a red card is

[tex]x=6[/tex]

[tex]y=7+4+6+8=25[/tex]

substitute

[tex]P=\frac{6}{25}[/tex]

The probability of choose a yellow card is

[tex]x=8[/tex]

[tex]y=7+4+6+8=25[/tex]

substitute

[tex]P=\frac{8}{25}[/tex]

The sum of the probabilities of the 4 possible outcomes  is equal to

[tex]\frac{7}{25}+\frac{4}{25}+\frac{6}{25}+\frac{8}{25}=\frac{25}{25}[/tex] ----> represent the 100%

Two geometric means are inserted between 4 and 864 so the four numbers form a geometric sequence. What are these two numbers ?

Answers

Answer:

24 and 144

Step-by-step explanation:

a = 4

t4 = 864

864 = 4*r^(4 - 1) divide by 4

216 = r^3            Take the cube root of 216

6 = r

Note you can find the cube root of any number by using your calculator.

216y^x or x^y or ^0.333333333333 = 5.99999999 which rounded is 6

t2 = a * r^(2 - 1)

t2 = 4 * 6^1

t2 = 24

=================

t3 = a*r^(3 -1)

t3 = 4 * 6^2

t3 = 4 * 36

t3 = 144

Answer

24 and 144

solve this equation
156=2b+5(-8-6b)​

Answers

Answer:the answer is -7

Step-by-step explanation:

156=2b+5(-8-6b)

2b+5(-8-6b)

expand 2b+5(-8-6b) ---> -28b-40

-28b-40=156

add 40 to both sides

-28b-40+40=156+40

simplify

-28b=196

divide both sides by -28

(-28b/-28b) = (196/-28b)

simplify

b=-7

How many 3 letter words can be made from 4 letters “FGHI” if repetition is allowed and if repetition isn’t alllowed ?

Answers

Final answer:

When repetition is allowed, there can be 64 different 3-letter words made from the letters 'FGHI'. When repetition is not allowed, there can be 24 different 3-letter words made from those letters.

Explanation:

In this question, we are asked to find the number of 3-letter words that can be made from the letters 'FGHI' with and without repetition. When repetition is allowed, each letter can be chosen independently for each position, so we have 4 choices for each position. Therefore, the total number of words is 4*4*4 = 64. When repetition is not allowed, each letter can only be used once, so we have 4 choices for the first position, then 3 choices for the second position, and finally 2 choices for the third position. Therefore, the total number of words is 4*3*2 = 24.

Learn more about Counting principles here:

https://brainly.com/question/29594564

#SPJ12

Choose the graph that shows the solution set for -2 ≥ x.

Answers

Explanation:

When looking at x on number lines, x is represented by the bold line. The x value can be anything on the bold line and therefore the line must respect the restrictions of x.

This question says -2 ≥ x which means "-2 is greater than or equal to x". Inversely, this also means that x is less than or equal to -2 because the original question can also be written as x ≤ -2. So, we are looking on the number line for the bold line that starts at -2 and continues to the left of -2, where the numbers that are less than -2 will be found.

The correct answer would be B.

Hope this helps!

Find the inverse of y=2x^2+2

Answers

Answer:

Step-by-step explanation:

Plug x for y and y for x.

y = 2x^2 + 2

x = 2y^2 + 2

Then isolate the y variable.

x - 2 = 2y^2

sqrt(x - 2) = 2y

(sqrt(x - 2))/2 = y

Is it possible for two numbers to have a difference of 6, and also a sum of 6?

Answers

Answer:

yes

Step-by-step explanation:

sum:

• `x+y=6`

• `y=6-x`

Difference:

• `y-x=6`

• `y=x+6`

Answer:

yes 12-6 has a difference of 6 and a sum of 6

Step-by-step explanation:

Through: (-4,-3), slope= 3/2

Answers

Answer:

[tex]\large\boxed{y+3=\dfrac{3}{2}(x+4)}[/tex]

Step-by-step explanation:

The point-slope form of an equation of a line:

[tex]y-y_1=m(x-x_1)[/tex]

We have

[tex]m=\dfrac{3}{2},\ (-4,\ -3)[/tex]

Substitute:

[tex]y-(-3)=\dfrac{3}{2}(x-(-4))\\\\y+3=\dfrac{3}{2}(x+4)[/tex]

Solve this quadratic equation using the quadratic formula.

3x2 + 4x = 6

Answers

Heres what I got :)

Answer:   [tex]\bold{\dfrac{-2\pm \sqrt{22}}{3}}[/tex]

Step-by-step explanation:

[tex]3x^2+4x-6=0\quad \rightarrow \quad a=3,\ b=4,\ c=-6\\\\\\\text{Quadratic formula is: }x=\dfrac{-b\pm \sqrt{b^2-4ac}}{2a}\\\\\\x=\dfrac{-(4)\pm \sqrt{(4)^2-4(3)(-6)}}{2(3)}\\\\\\.\ =\dfrac{-4\pm \sqrt{16+72}}{2(3)}\\\\\\\\.\ =\dfrac{-4\pm \sqrt{88}}{2(3)}\\\\\\\\.\ =\dfrac{-4\pm 2\sqrt{22}}{2(3)}\\\\\\\\.\ =\dfrac{-2\pm \sqrt{22}}{3}[/tex]

BASIC MATH PLEASE HELP

Answers

Answer:

8

Step-by-step explanation:

6 / .75(3/4)

8

6 divided by 3/4 is equivalent to 8

What is the characteristics of a line

Answers

• They're 180°

• Short, thin, or thick

• Could be curved, zig-zag, straight, bent etc.

• Perpendicular

A line is characterized by its length exceeding its width and the path it takes. Its qualities can express emotions and control the viewer's attention, with variations such as curved or angular, smooth or staccato, and different thicknesses. Lines play a crucial role in defining shapes and in expressive forms of writing such as calligraphy.

The characteristics of a line in design are defined by its length being greater than its width and by the paths it takes. A line is essentially a point in motion and is characterized by how it is used in art to determine motion, direction, and energy. When speaking of the qualities of a line, we refer to its character which can animate a surface. Lines can be curved or angular, and can progress smoothly or with a staccato rhythm, and they can be thick or thin, pale or bold.<\/p>

Lines have an emotional and expressive content that is understood both rationally and emotionally; they can control the viewer's attention and direction. Different types of lines like outline or contour line define shapes. Moreover, lines are integral to objects and writing symbols, where they denote meaning and can be expressive in themselves, illustrating their significance in calligraphy and other forms of art.<\/p>

Gestures are also related to lines, where a line produced by the artist's movement can be interpreted in various ways, like conveying calm with evenly drawn horizontal lines or rigidity with straight lines, which can be impactful depending on the context.<\/p>

What is the volume of the water contained in the cylinder?

Answers

Answer:

Vf = 118.365 m3

Step-by-step explanation:

Vcil = Pi*[(20)^2]*(100=

Vcil = 125.600 m3

Vesf = (4/3)*Pi*(12)^3

Vesf = 7235 m3

Then

Vf = Vci - Vesf

Vf = 125.600 - 7235

Vf = 118365 m3

Best regards

Michelle collected data on the weight of 200 apples at the farmer's market. Most weighed 0.30 –.40 pounds, but three weighed over a p
ound each. Michelle identified this as a striking deviation. What should she do with it?


A) Ignore the data.
B) Do not include the striking deviation in the data display.
C) Ignore the striking deviation because it is so far from the average.
D) Include the striking deviation because it may explain an unusual occurrence.

Answers

It should be C ignore the striking

Answer:

Step-by-step explanation:

include the striking deviation because it may explain an unusual occurrence is correct. Striking deviations or outliers can be useful in describing data set.

What is the image of ( 1 , 5 ) (1,5) after a reflection over the line y = − x y=−x?

Answers

The image would be (-1, 5)

Factor completely. x2−5x−24 Enter your answer in the box.

Answers

Answer:

(x-8)(x+3)

Step-by-step explanation:

Final answer:

To factor the quadratic expression x² - 5x - 24, we find the factors that multiply to -24 and add to -5, which are -8 and 3. Therefore, the factored form of the expression is (x - 8)(x + 3).

Explanation:

To factor the quadratic expression x² - 5x - 24 completely, we need to find two numbers that multiply to -24 (the constant term) and add to -5 (the coefficient of the x term). The numbers that fit this criteria are -8 and 3. So, our expression factors into:

(x - 8)(x + 3)

We can check our factoring by expanding these factors to see if we get the original expression:

(x - 8)(x + 3)
= x² + 3x - 8x - 24
= x² - 5x - 24

Thus, the original expression is correctly factored as (x - 8)(x + 3).

find the area of the shaded circle.give your answer in 3 significant numbers​

Answers

Answer:

116 cm²

Step-by-step explanation:

The area of a circle = πr² ← r is the radius

shaded area = external area - internal area

                      = π × 6.5² - π × 2.3²

                      = π( 42.25 - 5.29)

                      = π × 36.96 ≈ 116 cm²

Answer:

116.113 cm²

Step-by-step explanation:

Area of a circle = πr²

Shaded area = External area - Internal area

                      = π × 6.5² - π × 2.3²

                      = π × (42.25 - 5.29)

                      = π × 36.96 = 116.113 cm²

Other Questions
how did politics change during the antebellum period According to the graph above, how large of a force is needed in order to stretch the string 1.00 meters?100 N120 N400 N420 N What was the purpose of the Federalist Papers?to provide checks and balances on federal powerto help scholars understand the Articles of Confederationto outline key ideas in support of the Constitutionto explain the importance of state governments Use the law of conservation of mass to explain why a chemical equation must be balanced How was Roman government similar and different to our government today? Which area of study has a name that did not originate from the Greek language? A. Histroy B.Physic C.Psychology D.Algebra Why do astronomers think that the milky way is a spiral galaxy? Chris can be paid in one of two ways. plan a is a salary of $360 per month, plus a commission of 9% of sales. plan b is a salary of $630 per month, plus a commission of 4% of sales. for what amount of sales is chris better off selecting plan a? Please help with this question! Thanks!! I will mark brainliest if it lets me! Black holes are highly condensed remnants of stars. Some black holes, together with a normal star, form binary systems. In such systems the black hole and the normal star orbit about the center of mass of the system. One way black holes can be detected from Earth is by observing the frictional heating of the atmospheric gases from the normal star that fall into the black hole. These gases can reach temperatures greater than 1.10 106 K. Assuming that the falling gas can be modeled as a blackbody radiator, estimate max for use in an astronomical detection of a black hole. (Remark: This is in the X-ray region of the electromagnetic spectrum.) A charge of 100 elementary charges is equivalent to (1) 1.60 times 10^-21 C (2) 1.60 times 10^-17 C (3) 6.25 times 10^16 C (4) 6.25 times 10^20 C The ____ space station was the first major space project in which the u.S. And Russia work together 50 POINTS! PLEASE HELP! Read the passage.Many birds migrate through our state. Residents are visited by a wide variety of our feathered friends. Depending on the time of year, residents may be treated to visits from anything from a hummingbird to a goose. To help the birds on their journeys, people should set up their yards to accommodate the birds.Which quotation would be the most effective way to support the claim that people should help the birds?A: "Personally, I like all kinds of birds to visit," said a State Bird Society representative.B: "A Canada goose has a black head and neck," said a State Bird Society representative.C: "We're expecting a record number of birds this year, said a State Bird Society representative.D: "Hummingbirds flap their wings around 80 times per second," said a State Bird Society representative.---------Read this passage from When Birds Get the Flu by John DiConsiglio.Dr. Dowell had proven that bird flu could pass from person to person. But still, it hadnt been spread easily. The mother had held her dying daughter for hours.What section does this passage most belong in?A: in the opening where the claim is introducedB: in the body where the claim is supportedC: in the body where counterclaims are addressedD: in the conclusion where the argument is summed up HTML is the nam for how did president roosevelt justify using his powers as president of the united states? Which of the following topics would be best suited for a personal essay? why dont electrons just fly off into space? what holds them in orbit around the nucleus What is TCP/IP?A) a cloud software nameB) an ISP(internet service provider)C) the protocol that underlies most of the internetD) another name for the transparent layer The highest sustained pressure achieved in the laboratory is 1.5 107 kilopascals, kpa. what is this pressure in atm, mmhg, and torr? "Calculate the amount of energy it will take to change 20.0 Grams of Water from -3 C to changing it all to vapor at sea level. Show all your work for credit."Please show work! Would really appreciate it, last assignment for Chemistry > Steam Workshop Downloader