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
IRINA_888 [86]
3 years ago
15

PLEASE HELLP 25 POINTS

Mathematics
2 answers:
Leya [2.2K]3 years ago
8 0

Answer:

Step-by-step explanation:

You may need to clean things up a bit but suppose that

S(1) = a-1

S(2) = a^2 -1

Since this is a geometric series, the geometric ratio is given by

S(2)/ S(1) =  (a^2 -1)/ (a-1)

              =  (a+1)(a-1)/ (a-1)

              = a+1

Conclusion:

S(2) = (a+1) S(1) = (a+1) (a-1)

S(3)  = (a+1) S(2) = (a+1) (a+1) (a-1)   = (a+1)^ (3-1) (a-1)

S(4) = (a+1) S(3)  = (a+1) * (a+1)^2 (a-1) ) = (a+1)^(4-1) (a-1)

in general.....

S(n) = (a+1)^ (n-1) (a-1)

So

S(6) = (a+1)^ (6-1) (a-1)

     =  (a-1) (a+1) ^ 5

    =  a^6 + 4 a^5 + 5 a^4 - 5 a^2 - 4 a - 1

Read more on Brainly.com - brainly.com/question/11964426#readmore

gayaneshka [121]3 years ago
5 0

Hello from MrBillDoesMath!

Answer:

a^6 + 4 a^5 + 5 a^4 - 5 a^2 - 4 a - 1


Discussion:

You may need to clean things up a bit but suppose that

S(1) = a-1

S(2) = a^2 -1

Since this is a geometric series, the geometric ratio is given by


S(2)/ S(1) =  (a^2 -1)/ (a-1)

               =  (a+1)(a-1)/ (a-1)

               = a+1

Conclusion:

S(2) = (a+1) S(1) = (a+1) (a-1)

S(3)  = (a+1) S(2) = (a+1) (a+1) (a-1)   = (a+1)^ (3-1) (a-1)

S(4) = (a+1) S(3)  = (a+1) * (a+1)^2 (a-1) ) = (a+1)^(4-1) (a-1)

in general.....

S(n) = (a+1)^ (n-1) (a-1)

So

S(6) = (a+1)^ (6-1) (a-1)

      =  (a-1) (a+1) ^ 5

     =  a^6 + 4 a^5 + 5 a^4 - 5 a^2 - 4 a - 1


Hope I didn't screw something here!


Thank you,

MrB

You might be interested in
Given the function f(x) = −3x3 + 9x2 − 2x + 3, what part of the function indicates that the left end starts at the top of the gr
shutvik [7]

Answer: The correct option is, The coefficient of the first term.

Step-by-step explanation:

The given function is,

f(x)=-3x^3+9x^2-2x+3

End behavior of the polynomial function : It is defined as the graph of f(x) as x approaches +\infty and -\infty.

The end behavior of the graph depends on the leading coefficient and degree of the polynomial.

As, the degree of the polynomial is '3'. So, the leading coefficient will determine the structure of the graph.

Therefore, the coefficient of the first term will indicate that the left end starts at the top of the graph.

The graph is also shown below.

5 0
3 years ago
Read 2 more answers
Use properties to find the sum or product 9 times 52
hammer [34]
9 times 52 = 468 hope that helped!!
3 0
2 years ago
Read 2 more answers
What is the volume of the oblique cone? Round to the
Black_prince [1.1K]

Answer:

142.4 Cubic units

Step-by-step explanation:

V=1/3pir^2h

V=1/3(pi)(4^2)(8.5)

V=142.418866963

5 0
3 years ago
Read 2 more answers
5 cm<br> Find the total surface area of the<br> cylinder.<br> 10 cm
tatiyna

Answer: Area of a right circular Cylinder--- curved surface area -2πrh Total surface area -2πr(r+h),where 'r' is the radius of the circular surface and 'h' is the height of the cylinder.

3 0
2 years ago
What is the second term of the expression 2x + 3x + 5
mojhsa [17]

Answer:

2x + 3x + 5= 10x

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
Other questions:
  • If we express $-2x^2 + 4x + 5$ in the form $a(x - h)^2 + k$, then what is $k$?
    9·1 answer
  • What value of t makes P(t) = 21?<br> A. 1<br> B. 2<br> C. 3<br> D. 4
    11·1 answer
  • For a certain model of car the distance d required to stop the vehicle if it is traveling at v mi/h is given by the formula d =
    5·1 answer
  • 7th grade homework!<br> Probability quick Check<br> Please answer as many as you can/ want to
    6·2 answers
  • 3f+3&lt;6 or 7f-20 &gt;50 I don't understand this
    8·1 answer
  • erik drove 439.92 miles on 15.6 gallons of gas. To the nearest hundredth, how many miles could he drive on 39.7 gallons of gas?
    6·1 answer
  • Complete the proof for the following conjecture.
    11·1 answer
  • I NEED HELP ASAP
    9·1 answer
  • A piece of fabric is 2 yards long. The fabric is cut into 24 pieces of equal length.
    10·2 answers
  • PLSSSSSSSSSSSSSS HELPPPPPPPPPPPP
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!