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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

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Answer:

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4 0
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Answer:

  [c] The value of w cannot be a negative number.

  [d] Substitution is used to replace the variable l with a value of 20.

  [e] The subtraction property of equality is used to isolate the term with the variable w.

Step-by-step explanation:

     To figure out which steps of the solution are true, let us solve.

2 l plus 2 w equals 62 -> 2l + 2w = 62

----

2l + 2w = 62

2(20) + 2w = 62  <- Substitution is used to replace the variable l with a value of 20.

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2w = 22 <- The subtraction property of equality is used to isolate the term with the variable w.

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     This means that the value of w is <em>not</em> 10 feet so the first option is incorrect. This shape is a rectangle, so the value of w cannot be 0. Since we cannot have a negative measurement, option three is incorrect. This leaves us with the last three options as our answer, shown by the work above.

<em>    Read more about </em><em>this question</em><em> here:</em>

<em>brainly.com/question/12856278</em>

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Hey guys!!! I forgot how to do this :/ lol<br> whats 10+4÷2?
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Step-by-step explanation:

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2 years ago
Please help me I need help
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Answer:

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Step-by-step explanation:

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It’s b and d ? Both of those equations are the same if u haven’t noticed
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