What is the sum of the geometric series ?

What Is The Sum Of The Geometric Series ?

Answers

Answer 1

Replace t with 1 through 4 and solve then add them together:

6^(1-1) = 6^0 = 1

6^(2-1) = 6^1 = 6

6^(3-1) = 6^2 = 36

6^(4-1) = 6^3 = 216

Sum = 1 + 6 + 36 +216 = 259

Answer 2

Answer:  The required sum is 259.

Step-by-step explanation:  We are given to find the sum of the following geometric series :

[tex]\sum_{i=1}^{4}6^{i-1}.[/tex]

The given geometric series can be written as :

[tex]0+6+6^2+6^3.[/tex]

We know that

the sum of a geometric series up to n terms with first term a and common ration r is given by

[tex]S=\dfrac{a(r^n-1)}{r-1}.[/tex]

in the given series, we have

[tex]a=1,~~r=\dfrac{6}{1}=\dfrac{6^2}{6}=\dfrac{6^3}{6^2}=6.[/tex]

Therefore, the sum up to 4 terms will be

[tex]S_4=\dfrac{a(r^4-1)}{r-1}=\dfrac{1(6^4-1)}{6-1}=\dfrac{1296-1}{5}=\dfrac{1295}{5}=259.[/tex]

Thus, the required sum is 259.


Related Questions

The courtyard behind Jennie’s house is shaped like a trapezoid the bases measure 8 meters and 11 meters the height of the trapezoid is 12 meters what is the area of the courtyard

Answers

The area of the trapezoidal courtyard is 114 square meters.

To find the area of a trapezoid, you can use the formula:

[tex]\[ \text{Area} = \frac{1}{2} \times (\text{sum of the bases}) \times \text{height} \][/tex]

Given:

- Base 1 (b1) = 8 meters

- Base 2 (b2) = 11 meters

- Height (h) = 12 meters

Plugging these values into the formula:

[tex]\[ \text{Area} = \frac{1}{2} \times (8 + 11) \times 12 \][/tex]

[tex]\[ \text{Area} = \frac{1}{2} \times 19 \times 12 \][/tex]

[tex]\[ \text{Area} = \frac{1}{2} \times 228 \][/tex]

[tex]\[ \text{Area} = 114 \][/tex]

So, the area of the courtyard is 114 square meters.

factor the polynomial 9x-6

Answers

Answer:

3(3x-2)

Step-by-step explanation:

this is factoring 3 out of 9x-6

The answer would be 3(3x-2).
I hope this helps!

Write a numerical expression to represent the number of apps Priscilla and Cynthia have combined. (Do not simplify the expression just yet.)


answer quickly there was no picture or other info this was the question

Answers

Answer:

P+C=x?

If there was no numerical data, than that is probably the answer. Is it multiple choice?

Answer:

48/4

Step-by-step explanation:

what is the difference of the polynomials?
(-2x^3y^2 + 4x^2y^3 - 3xy^4) - (6x^4y - 5x^2y^3 - y^5)


Answers

Answer:

A

Step-by-step explanation:

I'm assuming you already know how to do it and just need an answer.

The difference of the polynomial will be [tex]- 6x^4y-2x^3y^2 + 9x^2y^3 - 3xy^4 + y^5[/tex]

Given the polynomial function

[tex](-2x^3y^2 + 4x^2y^3 - 3xy^4) - (6x^4y - 5x^2y^3 - y^5)[/tex]

Expand the parenthesis to have:

[tex]-2x^3y^2 + 4x^2y^3 - 3xy^4 - 6x^4y + 5x^2y^3 + y^5)[/tex]

Collect the like terms:

[tex]-2x^3y^2 + 4x^2y^3 + 5x^2y^3- 3xy^4 - 6x^4y + y^5\\-2x^3y^2 + 9x^2y^3 - 3xy^4 - 6x^4y + y^5[/tex]

Rearrange:

[tex]- 6x^4y-2x^3y^2 + 9x^2y^3 - 3xy^4 + y^5[/tex]

Hence the difference of the polynomial will be [tex]- 6x^4y-2x^3y^2 + 9x^2y^3 - 3xy^4 + y^5[/tex]

Learn more here: https://brainly.com/question/10417192

The diameter of a circular garden is 16 feet. What is the approximate area of the garden

Answers

Answer:

201 ft²

Step-by-step explanation:

Area of a circle is given by the formula

πr²

Thus area

= 3.142 × 8 × 8

=  201.088

= 201 ft²

Answer:

Option C

201 feet²

Step-by-step explanation:

Given in the question,

diameter of the circular graph = 16 feet

Formula to calculate the area of garden

Area =  π r²

where π is constant = 3.14

           r is the radius

To find the radius

diameter/2

16/2

8 feet

Plug in values to calculate area

(3.14) 8²

200.96 feet²

Area of the circular garden having 16 feet diameter is 201 (approximate)

How many different ways can you find of writing 1/2

Answers

Answer:

1/2, half, 50%

Step-by-step explanation:

Hannah has 10 pencils. Jim and Hannah have 17 pencils altogether. How many pencils Jim have ?

Answers

Answer:

7

Step-by-step explanation:

altogether = 17

hannah =10

answer= 17-10

                  7

What is the interquartile range for the data set??

Answers

Answer:

65

Step-by-step explanation:

First, order the numbers in order. Then find the "middle numbers" and omit them after you have divided the number set into two equals parts. Then find the median of those number sets and then subtract.

You should get 71-6 at the end which is 65.

Write the expression (4x-2)•6(2x+7) in the form of a quadratic expression ax^2+bx+c. What are the values of the coefficients of each term and constant term.

A=
B=
C=

Answers

Answer:

9

Step-by-step explanation:

What is the solution?

Answers

Answer: OPTION A

Step-by-step explanation:

Apply the Quadratic formula, which is:

[tex]x=\frac{-b\±\sqrt{b^2-4ac}}{2a}[/tex]

In this case:

[tex]a=1\\b=-6\\c=58[/tex]

Then, you must susbtitute these values into the quadratic formula, as shown below:

[tex]x=\frac{-(-6)\±\sqrt{(-6)^2-4(1)(58)}}{2*1}[/tex]

[tex]x=\frac{6\±\sqrt{-196}}{2}[/tex]

Keep on mind that [tex]i=\sqrt{-1}[/tex], then you can rewrite it as following:

[tex]x=\frac{6\±14i}{2}\\\\\\x=\frac{2(3\±7i)}{2}\\\\x=3\±7i\\\\x_1=3+7i\\x_2=3-7i[/tex]

Answer:

A. {[tex]3+7i,3-7i[/tex]}

Step-by-step explanation:

The given equation  is  [tex]x^2-6x+58=0[/tex]

Use the quadratic formula with a=1,b=-6 and c=58

Recall the quadratic formula;

[tex]x=\frac{-b\pm\sqrt{b^2-4ac} }{2a}[/tex]

We substitute the given values to get;

[tex]x=\frac{--6\pm \sqrt{(-6)^2-4(1)(58)} }{2(1)}[/tex]

[tex]x=\frac{6\pm \sqrt{36-232} }{2}[/tex]

[tex]x=\frac{6\pm \sqrt{-196} }{2}[/tex]

Recall that;

[tex]\sqrt{-1}=i[/tex]

[tex]x=\frac{6\pm 14i}{2}[/tex]

[tex]x=3\pm 7i[/tex]

[tex]x=3+7i[/tex] or [tex]x=3-7i[/tex]

Identify which property off addition could be used to solve the following problem. Solve the problem and justify how using the property makes the problem easier to solve.


(5.9 + 3.2) + 1.8

Answers

Answer:

so we use BODMAS

B..bracket

O..oppration

D..division

M..multiplication

A..addition

S..subtraction

so we first simplify the bracket 5.9+3.2=9.10)l8

then ther is no O D M we jump them and add with 1.8

9.1+1.8=10.9

so the answer is 10.9

Can you help me out on this one

Answers

Answer:

I think the answer is C if I'm wrong sorry its been two years since i last learnt this

Step-by-step explanation:

Solve the equation for x by graphing -2^x+3=-3^(- x)-2

Answers

The graphs intersect at (2.344, -2.076), so 2.344 would be your x.

Answer: =2.35

Step-by-step explanation:

What are the values of x and y

Answers

Answer:

x = 16

y = 131

Step-by-step explanation:

4x + 2x - 6 = 90

6x = 96

x = 16

16 + 33 + y = 180

49 + y = 180

y = 131

Cube-Shaped blocks are packed into a cube-shaped storage container.
· The edge length of the storage container is 2 1/2 feet.
· The edge length of each block is 1/5 the edge length of the storage container.
What is the volume of, in cubic feet, one shaped-cube block?

Answers

Answer:

The volume of one shaped-cube block is [tex]\frac{1}{8}\ ft^{3}[/tex]

Step-by-step explanation:

we know that

The volume of a cube is equal to

[tex]V=b^{3}[/tex]

where

b is the length side of the cube

step 1

Find the length side of one shaped-cube block

Let

x------> the length side of one shaped-cube block

y-----> the length side of the storage container

[tex]x=y/5[/tex] -----> equation A

we have

[tex]y=2\frac{1}{2}\ ft=\frac{2*2+1}{2}=\frac{5}{2}\ ft[/tex] ---> convert to an improper fraction

substitute in the equation A

[tex]x=(5/2)/5=1/2\ ft[/tex]

step 2

Find the volume of one shaped-cube block

[tex]V=(1/2)^{3}[/tex]

[tex]V=\frac{1}{8}\ ft^{3}[/tex]

Write an equation of the line passing through the point (5,3) with slope m = -4

Answers

Answer:

Step-by-step explanation:

For this problem, point slope form would be the easiest.

Point Slope Form- y-y1 = m(x-x1)

In this case, y1 is 3, x1 is 5, and m would be the slope which is -4.

y-3=-4(x-5)

This is how to write an equation for the problem.

Answer:

[tex]\large{\boxed{y-3=-4(x-5)-\text{point-slope form}}\\\boxed{y=-4x+23}}[/tex]

Step-by-step explanation:

The equation of a line in point-slope form:

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

m - slope

(x₁, y₁) - point

We have the slope m = -4 and the point (5, 3). Substitute:

[tex]y-3=-4(x-5)[/tex]       use distributive property

[tex]y-3=-4x+(-4)(-5)[/tex]

[tex]y-3=-4x+20[/tex]       add 3 to both sides

[tex]y=-4x+23[/tex]

Please salve the equation for x

Answers

Answer:

-125

Step-by-step explanation:

The graph shows a probability distribution. What is P(X<5)

Answers

Answer:

P(x < 5) = 0.70

Step-by-step explanation:

Note:  The area under a probability "curve" must be = to 1.

Finding the sub-area representing x < 5 immediately yields the desired probability.

Draw a dashed, vertical line through x = 5.  The resulting area, on the left, is a trapezoid.  The area of a trapezoid is equal to:

 (average length)·(width, which here is:

  2 + 5

----------- · 0.02  =  (7/2)(0.2) =  0.70

      2

Thus, P(x < 5) = 0.70

What point on the number line represents the solution to the equation m-3=9?

Answers

12

replace m with 12.
12-3=9

Answer:

I know she he or they answered just wanted you to see :)

Step-by-step explanation:

please help on 5 and 7 these are the last and final questions on this TBT please please help me u are guaranteed to help so please ​and please explain

Answers

5. you would use whole numbers because points are whole

7.x represents (2) the hours worked per week. this is because it say hourly rate and were estimating the weekly profit

You use whole numbers because the points are whole represents 2) the hours worked per week. this is because it say hourly rate and were estimating the weekly profit

Hope this helped.

What is 2648 to two significant figures?

Answers

Answer:

2650

Step-by-step explanation:

Given: 2648

Two significant figures means we need to round off to the nearest tens place.

In 2648, the tens place is 4

To round off the tens place, we need to look for the next digit that is right to tens place, which is 8

8 is greater than 5, so we need to add 1 with tens place (4 +1 = 5)

Therefore, it is 2650

Hope this will helpful.

Thank you.

2648 to two significant figures is 2700

Further explanation

The significant figures of a number are digits that carry meaning contributing to its measurement resolution. This includes all digits except all leading zeros

There are three rules determining how many significant figures are in a number:

Non-zero digits are always significant.Any zeros between two significant digits are significant.A final zero or trailing zeros in the decimal portion only are significant.

For addition and subtraction use the following rules:

Count the number of significant figures in the decimal portion least of each number in the problemAdd or subtract in the normal fashionYour final answer may have no more significant figures to the right of the decimal than the least number of significant figures in any number in the problem.

For multiplication and division use the following rule:

The least number of significant figures in any number of the problem determines the number of significant figures in the answer.

The given number is 2648

2648 can be written in two significant figures as 2700

2648 has four significant figures such as 2,6,4,8.

The second digit in the given number 2648 is '6'

Because the number 6 is greater than 5, therefore it can be rounded as '7'

Therefore, the number 2648 with four significant figures can be written as 2700 in two significant figures.

So 2700 has only two significant figures: 2 and 7.

Learn moreLearn more about  significant figures https://brainly.com/question/11566364Learn more about 2648 https://brainly.com/question/12535951Learn more about round 6.7493 to 2 significant figures https://brainly.com/question/307586

Answer details

Grade:  9

Subject:  mathematics

Chapter:  significant figures

Keywords:   significant figures, figures, numbers, significant, digits, measurement resolution


Which rule describes the composition of transformations that maps pre-image ABCD to final image A"B"C"D"?

Answers

Answer:

rx-axis o T- 6,1 (x,y)

Step-by-step explanation:

We can see in the diagram that distances of  and  from the x-axis are equal with the distances of  and  from the x-axis respectively.

That means,  is first reflected about the x-axis to form

Now,  and  are located at 6 units left and 1 unit up from  and .

Thus, for getting the final image , we are first reflecting  about the x-axis and then translated it 6 units left and 1 unit upward.  

Answer:

I'd say it's B

Step-by-step explanation:

Cuz

Can someone please help me with this one? I’m very confused, how can you solve for the width if the problem doesn’t tell you what a and b are for the length? And after, can you tell me which letter it is? I just randomly guessed B, but idk if it’s correct and I need work to support my answer too. Whoever helps me first will get brainliest

Answers

Answer:

A. (2x-3)/2

Step-by-step explanation:

Performing the long division indicated by the perimeter expression, you find ...

perimeter = (2x -3) + (10x +6)/(x^2 +2x)

Comparing this to the formula for the perimeter ...

perimeter = 2W +2L

where L is said to be of the form (ax +b)/(x^2 +2x)

we can match terms in the perimeter expression to see that ...

2W = 2x -3

2L = (10x +6)/(x^2 +2x)

The problem doesn't ask for it, but we can see that (a, b) = (5, 3). We can also see that ...

W = (2x -3)/2 . . . . . . . matches choice A

verify the pythagorean identity 1 + c o t ^2 θ = c s c ^2 θ

Answers

Answer: The identity is verified. See the explanation.

Step-by-step explanation:

You must keep on mind the following identities:

[tex]csc\theta=\frac{cos\theta}{sin\theta}\\\\csc\theta=\frac{1}{sin\theta}\\\\sin^2\theta+cos^2\theta=1[/tex]

Therefore, by substitution, you can rewrite the identity as shown below:

[tex]1+cot^2\theta=csc^2\theta\\\\1+\frac{cos^2\theta}{sin^2\theta}=csc^2\theta[/tex]

Simpliying, you obtain:

[tex]\frac{sin^2\theta+cos^2\theta}{sin^2\theta}=csc^2\theta\\\\\frac{1}{sin^2\theta}=csc^2\theta\\\\csc^2\theta=csc^2\theta[/tex]

The identity is verified.

a school art teacher needs 200 sticks of clay. An art shop donates 9 small boxes and 6 large boxes of clay. the small boxes have 7 sticks of clay and the large has 10. how many more sticks of clay are needed?​

Answers

the art teacher still needs 68 sticks of clay

the base of a triangle and a parallelogram are the same length there Heights are also the same if the area of the parallelogram is 48 m 2 what is the area of the triangle​

Answers

Answer:

24

Step-by-step explanation:

The area of a parallelogram is A = b*h. The area of a triangle is A = 1/2 b*h. This means if the area of the parallelogram is 48 square meters then the area of the triangle is 24 square meters.

Answer:

24 m^2

Step-by-step explanation:

Please help me please

Answers

3/4(2(2+4k)+2(3+3/2k))

Use the distributive property inside the parenthesis first:

3/4(4+8k + 6 + 3k)

Simplify:

3/4(11k + 10)

Distributive property again:

3/4(11k) + 3/4(10)

33/4k + 15/2

Rearrange to get A. 15/2 + 33/4k

show your work and answer choice in the comments​

Answers

Answer:   D.  2550 cm³

Step-by-step explanation:

Volume of one box = Length x width x height

Volume of 6 boxes = 6(L x w x h)

                                = 6(14 x 6 x 5)

                                = 6(14 x 30)

                                = 6(420)

                                = 2520

Can someone please help me out

Answers

Answer:

B. $60,000

Step-by-step explanation:

multiply 2 million by 3% to get your answer

hope this helps!!

Answer:

2,000,000 times 3% = 60,000 so b 60,000

Step-by-step explanation:

Tell whether the ordered pair is a solution of the linear system.


(-3,-2)
3x - 2y = -5
4x + 3y = -18

Answers

the ordered pair is a solution to the two equations.

Answer:

hello : (-3,-2) is solution

Step-by-step explanation:

put x = - 3 and y = -2 in this system :

3(-3) - 2 (- 2 ) = - 9 + 4 = - 5 .... right

4( - 3 ) +3(-2) = - 12 - 6 = -18 .....right

(-3,-2) is solution of the linear system:   3x - 2y = -5  

                                                                4x + 3y = -18

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