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Vinvika [58]
2 years ago
8

consider the series ∑n=1[infinity]4n 2. let sn=∑i=1n4i 2 be the n-th partial sum; that is the sum of the first n terms of the se

ries. find s3 and s5.
Mathematics
1 answer:
Semenov [28]2 years ago
4 0

Answer:

Step-by-step explanation:

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mylen [45]
I think that the answer is a hoped i helped
6 0
3 years ago
7+4×-9=-6<br>please show the work
VikaD [51]

7+4=11 * -9= -99  hope this helped        

3 0
3 years ago
40=3x+x^2<br><br> How do I find the answer to this
tamaranim1 [39]

Answer:

x = -8, x = 5

Step-by-step explanation:

This can be solved using Factorization method:

40 = 3x +  {x}^{2}  \\  \\  \implies \:  {x}^{2}  + 3x - 40 = 0 \\  \\   \implies \:  {x}^{2}  + 8x  - 5x- 40 = 0 \\  \\  \implies \:  x({x} + 8)  - 5(x + 8) = 0 \\  \\ \implies \:  ({x} + 8) (x - 5)  = 0 \\  \\ \implies \:  ({x} + 8) = 0 \:  \: or \:  \:  (x - 5)  = 0 \\  \\ \implies \:  x =  - 8 \:  \: or \:  \: x = 5 \\  \\ x =  - 8, \:  \: 5

8 0
2 years ago
Answer if you can and help other people out
oksano4ka [1.4K]
<h2><em>Answer:</em></h2><h2><em>1</em><em>3</em><em>1</em><em>.</em><em>9</em><em>6</em><em>4</em><em> </em><em>cm</em></h2>

<em>Solution,</em>

<em>radius=</em><em>2</em><em>1</em><em> </em><em>cm</em>

<em>Circumference</em><em> </em><em>of </em><em>circle</em><em>=</em><em>2</em><em> </em><em>pi </em><em>r</em>

<em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em>=</em><em>2</em><em>*</em><em>3</em><em>.</em><em>1</em><em>4</em><em>2</em><em>*</em><em>2</em><em>1</em>

<em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em>=</em><em>1</em><em>3</em><em>1</em><em>.</em><em>9</em><em>6</em><em>4</em><em> </em><em>cm</em>

<em>hope </em><em>it</em><em> helps</em>

<em>Good </em><em>luck</em><em> on</em><em> your</em><em> assignment</em>

8 0
3 years ago
Read 2 more answers
Calculate S58 for the arithmetic sequence {an}= {5/6n+1/3} If you could show me the steps that would be great. I keep following
Amanda [17]

Answer is 8671/6 which is the third choice

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

Work Shown:

Find the first term of the sequence by plugging in n = 1

a_n = (5/6)*n + 1/3

a_1 = (5/6)*1 + 1/3    replace n with 1

a_1 = 5/6 + 1/3

a_1 = 5/6 + 2/6

a_1 = 7/6

Repeat for n = 58 to get the 58th term

a_n = (5/6)*n + 1/3

a_58 = (5/6)*58 + 1/3    replace n with 58

a_58 = (5/6)*(58/1) + 1/3

a_58 = (5*58)/(6*1) + 1/3

a_58 = 290/6 + 1/3

a_58 = 145/3 + 1/3

a_58 = 146/3

Now we can use the s_n formula below with n = 58

s_n = (n/2)*(a_1 + a_n)

s_58 = (58/2)*(a_1 + a_58)    replace n with 58

s_58 = (58/2)*(7/6 + a_58)   replace a_1 with 7/6

s_58 = (58/2)*(7/6 + 146/3)   replace a_58 with 146/3

s_58 = (58/2)*(7/6 + 292/6)

s_58 = (58/2)*(299/6)

s_58 = (58*299)/(2*6)

s_58 = 17342/12

s_58 = 8671/6


5 0
3 years ago
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