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jolli1 [7]
4 years ago
15

Find S11 for 1 + 2 + 4 + 8 +

Mathematics
1 answer:
Free_Kalibri [48]4 years ago
4 0
Evaluating the given sequence, it is evident that the next number is twice the number prior to it. Thus, the given is a geometric sequence with first term (a1) equal to 1 and common ratio of 2. The geometric series may be calculated by the equation,
 
                                            Sn = a1 x (1 - r^n) / (1 - r)

where Sn is the sum of n terms in this case, n = 11. 
Substituting the known values, 
 
<span>                                      Sn = 1 x (1 - 2^11) / (1 - 2) = 2047
</span>
Thus, S11 is 2047. 
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Step-by-step explanation:

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3 0
3 years ago
What is the start time?<br><br> End time:10:08<br> elapsed time :30 minutes
Hoochie [10]

Answer:

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Step-by-step explanation:

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10:08-30=9:38

5 0
2 years ago
Find all exact solutions on the interval 0 ≤ x &lt; 2π.
masya89 [10]

Answer:

View Image

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Step-by-step explanation:

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3 0
3 years ago
Find the total surface area of this cuboid.<br> 5 cm<br> 2.3 cm<br> 7.5 cm
Mekhanik [1.2K]

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8 0
3 years ago
Write the fraction in ascending order.
zysi [14]

QUESTION 1 :

find the LCM of 3,6,2,4

LCM = 12

THEREFORE,

2/3*4/4 = 8/12

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1/2*6/6 = 6/12

3/4*3/3 = 9/12

8/12 , 10/12 , 6/12 , 9/12

Ascending order of ( 8/12 , 10/12 , 6/12 , 9/12)

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3 0
3 years ago
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