Second term of a geometric series is , the limiting sum is 9.
Get the values of first term a and common ratio r.

Answers

Answer 1

Answer:

The answer is below

Step-by-step explanation:

Second term of a geometric series is 2, the limiting sum is 9.

Get the values of first term a and common ratio r.

Solution:

A geometric series is in the form:

a + ar + ar² + ar³ + . . . + arⁿ ⁻ ¹

Where a is the first term, n is the nth term and r is the second ratio.

Since the second term of the series is 2, hence:

ar⁽² ⁻ ¹⁾ = 2

ar = 2        (1)

Also, the limiting sum is 9, hence:

a/ (1 - r) = 9

a = 9 - 9r     (2)

Substitute a = 9 - 9r in eqn 1:

(9 - 9r)r = 2

9r - 9r² = 2

9r² - 9r + 2 = 0

9r² - 6r - 3r + 2 = 0

3r(3r - 2) -1(3r - 2) = 0

(3r - 1)(3r - 2) = 0

r = 1/3 or r = 2/3

When r = 1/3; a = 9 - 9r = 9 - 9(1/3) = 6

When r = 2/3; a = 9 - 9r = 9 - 9(2/3) =  3


Related Questions

Help me I beg u! The pre-image coordinates of a triangle are J(-6,9), K(-6,4), and L(-3,4). The coordinates of the transformed triangle are J'(2,9), K'(2,4), and L'(5,4). What transformation has occurred? A. translation B. reflection C. dilation D. rotation Reset Next Question

Answers

Answer:

A. Translation

Step-by-step explanation:

Given

Preimage

[tex]J = (-6,9)[/tex]

[tex]K = (-6,4)[/tex]

[tex]L = (-3,4)[/tex]

Image

[tex]J' = (2,9)[/tex]

[tex]K' = (2,4)[/tex]

[tex]L' = (5,4)[/tex]

Required

Which transformation occurred

The transformation that occurs is translation because each of the preimage were translated or shifter right by 8 units.

The rule applied here is:

[tex](x,y)=>(x+8,y)[/tex]

So, we have:

[tex]J = (-6,9)[/tex] [tex]==> (-6+8,9) = (2,9)[/tex]

[tex]K = (-6,4)[/tex] [tex]==> (-6+8,4) = (2,4)[/tex]

[tex]L = (-3,4)[/tex] [tex]==> (-3+8,4) = (5,4)[/tex]

Hence, the transformation is (a) Translation

please help me .......

Answers

9514 1404 393

Answer:

  65°

Step-by-step explanation:

Any sort of bisector divides a geometry into two congruent parts. Here, we have an angle bisector that divides the larger (130°) angle into two equal parts. The measure of each of the resulting smaller angles will be 130°/2 = 65°.

  ∠JAE = 65°

The sim of any matrix and a zero matrix is

A. Undefined

B. Zero

C. The zero matrix

D. The original matrix

Answers

The answer would be D

It’s D the answer is D

Please help. Thank you.

Answers

Answer:

-10m-9

Step-by-step explanation:

-3(4m+3)+2m

combine like terms

-12m-9+2m

-10m-9

-10m-9 is the answer. good luck

What 1,500 rounded to the nearest hundredth

Answers

Answer:

2,000

Step-by-step explanation:

The answer is 2,000 hope that helps!

joseph left the house at 11:17 A.M and returned at 12:45 P.M how many minutes was joseph gone from the house

Answers

1 hour & 28 minutes.

Joseph was gone from the house for 1 hour & 28 minutes.

0. Folded boxes a. Squares with sides of length x are cut out of each corner of a rectangular piece of cardboard measuring 5 ft by 8 ft. The resulting piece of cardboard is then folded into a box without a lid. Find the volume of the largest box that can be formed in this way. b. Squares with sides of length x are cut out of each corner of a square piece of cardboard with sides of length /. Find the volume of the largest open box that can be formed in this way.

Answers

Answer:

Box dimensions:

L = 3 ft

D = 6 ft

H = 1 ft

Volume  V = 18 ft³

Step-by-step explanation:

a) Each side of the future box is

L = 5 - 2*x     D = 8 - 2*x  

height of the box is   x

Then the volume of the box as function of x is:

V(x) =  ( 5 - 2*x ) * ( 8  - 2*x ) * x

V(x) = ( 40 - 10*x - 16*x + 4*x² ) * x

V(x) = 40*x - 26*x² + 4*x³

Tacking derivatives on both sides of the equation:

V´(x) = 40 - 52*x + 12x²     or     V´(x) = 20 - 26*x + 6*x²

If V´(x) = 0

6*x² - 26*x + 20  = 0

Solving for x

x₁,₂  = (-b ± √ b² - 4*a*c  ] /2*a

x₁,₂  = ( 26  ±  √ 676  - 480  ) / 12

x₁,₂  =  (26 ± 14 )/ 12

x₁  = 1

x₂ = 3,33        ( we dismiss this solution since is not feasible according to cardboard dimensions )

Then the sides of the box are:

L = 5 -2*x      L  =  5 - 2*1     L = 3 ft

D = 8 - 2*x    D  = 8 - 2*1     D = 6 ft

H = x = 1 ft

And the volume is    V = 6*3*1 = 18 ft³

Gaelle Bosquet Nth Term of an Arithmetic Sequence Apr 10, 12:29:36 AM Find the 60th term of the arithmetic sequence 4,-1,-6, ... Answer: Submit Answer

Answers

Answer:

The nth term is [tex]a_n = 4 - 5(n-1)[/tex]

The 60th term of the sequence is -291.

Step-by-step explanation:

Arithmetic sequence:

In an arithmetic sequence, the difference between consecutive terms is always the same, and it is called common difference.

The nth term is given by:

[tex]a_n = a_1 + (n-1)d[/tex]

In which [tex]a_1[/tex] is the first term and d is the common difference.

4,-1,-6

The common difference is:

[tex]d = -1 - 4 = -5[/tex]

First term [tex]a_1 = 4[/tex]

So

[tex]a_n = a_1 + (n-1)d[/tex]

[tex]a_n = 4 - 5(n-1)[/tex]

60th term:

[tex]a_{60}[/tex]. Si

[tex]a_{60} = 4 - 5(60-1) = -291[/tex]

The 60th term of the sequence is -291.

8 3/4 divided by 3 1/2

Answers

Answer:

[tex]2\frac{1}{2}[/tex]

Step-by-step explanation:

Can someone help me with this question?

Answers

Answer:

D

Step-by-step explanation:

2 x 2 = 4 x PI = 12.56

The answer would be. B

guys help im bad at math

Answers

Answer:

A = 13

B = 50

C = 22.5

D = 3.5

E = 16.3

Step-by-step explanation:

divide each area by 4

ex: 52 ÷ 4 = 13

Don’t worry we’re all bad at math. Though this simple once you know what to do. Simply divide each area by 4 and each will end up coming out to

A: 13

B: 50

C: 22.5

D: 3.5

E: 16.3

There you go!

Pls help with this asap

Answers

The answer is A and D

PLEASE HELP!! NO SCAM LINKS

Answers

9514 1404 393

Answer:

  (d)  new line is less steep

Step-by-step explanation:

Changing the slope from 3 to 1/3 makes the line less steep.

__

In the attachment, the blue line is the new line.

16.
There are two adjacent supplementary angles. The larger angle is 2
more than 3 times the smaller angle. What are the degrees of both
angles? What is the difference in their measurements?

Answers

44.5 and 135.5. The difference is 91

whcich expression are equivialant to the one below 3^4*3^x

Answers

Answer:

3x+4

Step-by-step explanation:

help me please! i’m giving brainliest! :)

A desk measures 3 feet in height. How many inches does the desk measure in height?

Answers

Answer:

36 Inches

Step-by-step explanation:

Answer:

36

Step-by-step explanation:

it would just be 12×3=36

St. Patrick's Day Problem Solving
Use the weight on the scales to determine the weight of each egg.
Note: Identical eggs weigh the same amount,

3.5
6
5.5

Answers

Maybe the answer 3.5 I don’t know

A flower bed is in the shape of a triangle, with a base of 11 feet and a height of 7 feet. What is the area of the flower bed

Answers

Answer:

38.5ft²

Step-by-step explanation:

Triangle area formula = [tex]\frac{1}{2} * b * h[/tex]

Triangle area = [tex]\frac{1}{2} * 11 * 7[/tex]

Triangle area = 0.5 * 11 * 7

Triangle area = 38.5ft²

Answer: GIVE THE GUY BRAILIEST PLEASE

5/8 in simplest form.

Answers

Answer:

5/8 in simplest form is 5/8

Step-by-step explanation:

Answer:

5/8 is in the simplest form already.

Step-by-step explanation:

It cant be lowered anymore, due to 5 not being divisible by 4, 2, or 8, which is what 8 is divisible by.

Question:

Simplify. √(36)²

Answers

Answer:

36

Step-by-step explanation:

sqrt(36)^2

36

I hope this helps

A block of wood measures 5.5 inches by 3.5 inches by 9 inches. What is the volume of the block of wood

Answers

Answer:

V = 173.25 in³

Steps:

V = 5.5 × 3.5 × 9

V = 173.25 in³

Please help me I need this due

Answers

C. 18 just had this problem

Helpp meeeeeeeeeeeeeeeeeee

Answers

Answer:

perimeter = 48 Area = 144

Step-by-step explanation:

was that all?

find the next term in the sequence. please type the number only as you answer. hint first figure out if the sequence is arithmetic or geometric
-3,9,-27,81,​

Answers

Next term = -243
Because it is x3 every time

The Thompson family is buying a car that can travel 70 miles

Answers

Answer:

The car gets 35 miles per gallons.

Step-by-step explanation:

CLICK ON PHOTO AND NOOOOO LINKS PLSSSS

Answers

You put those equal to each other that find the x and than x value to x+3.

A rectangular garden has dimensions of 100 feet by 10 feet. Next season, the garden is decreased to 2/5 of its size what is the scale of the new drawing

Answers

Answer:

4 and 40

Step-by-step explanation:

2/5 of 10 is 4

2/5 of 100 is 40

Order these numbers from least to greatest:
|-17|
|-18|
-18
|19|
20

Answers

Answer:

-18, |-17|, |-18|, |19|, 20

Step-by-step explanation:

the absolute value of -17 is 17, the absolute value of -18 is 18, and the absolute value of 19 is just 19. Absolute values are never negative.

Hope this helps!

Jimmy has 6 computers and 7 printers to choose from. How many possible computer- printer combinations are there to make?

O 42
O 13​

Answers

Answer:

13

Step-by-step explanation:

Computers=6

Printers=7

Now,

=6+7

=13

The correct answer is 13

Find the slope of the line passing through the points (-6,-9) and (9,-9)

Answers

(-6,-9) (9–9
-9-9/-9- -6
-18/-3
The slope is 6
Hope that helped :)
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