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Amiraneli [1.4K]
3 years ago
10

Find the 11th partial sum of the summation of negative 7i plus 22, from i equals 1 to infinity.

Mathematics
1 answer:
Alinara [238K]3 years ago
4 0
The answer is -220 
What you do is take -7 and multiply that by (1+2+3+4+5+6+7+8+9+10+11) and then after that add 11 again and multiply it by 22. It would look like this. 

-7 x (1+2+3+4+5+6+7+8+9+10+11) +11 x 22

Simplify that to -7 x 66 +11 x 22

now multiply -7 and 66 to get -462 

-462 +11 x 22 

multiply 11 and 22 

-462 + 242 

and your final answer will be -220 
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Angelina_Jolie [31]

Answer:

p = 1

Step-by-step explanation:

4 - 5(p + 3/5) = -4

Find P

4 - 5(p + 3/5) = -4

4 - 5p -15/5 = -4

4 - 5p - 3 = -4

-5p + 1 = -4

-5p = -4 - 1

-5p = -5

p = -5/-5

p = 1

Check:

4 - 5(p + 3/5) = -4

4 - 5(1 + 3/5) = -4

4 - 5 - 15/5 = -4

4 - 5 - 3 = -4

4 - 8 = -4

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8 0
3 years ago
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serg [7]

Answer:

x = 8.8

Step-by-step explanation:

take 20 degree as reference angle .the,

hypotenuse = OQ = x (hypotenuse is always opposite of 90 degree)

perpendicular(opposite) = PQ 3 (opposite of reference angle is perpendicular or also called as opposite)

base(adjacent) = OP (side which lies on the same line where 90 degree and reference angle)

using sin rule

sin 20 = opposite / hypotenuse

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x = 3/0.34

x = 8.82

x = 8.8

4 0
2 years ago
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Which data is represented by this plot?
RSB [31]
Answer:

a)

Step-by-step explanation:

Data represented by the plot: 0, 1, 1, 1, 2, 3, 4, 4, 6, 7 & 8

B) & C) Can’t be answers cuz of 2 0’s

So it’s between A) & D)

Well D is missing one more 1 in the data plot so the answer is A



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3 years ago
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Answer:

171 in³

Step-by-step explanation:

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What is ...<br><br> 4x + 10= 2x - 6
Nata [24]
4x + 10= 2x - 6
Subtract 2x on both sides

4x - 2x + 10 = 2x - 2x - 6

4x - 2x + 10 = -6

2x + 10 = -6

Subtract 10 on both sides

2x + 10 - 10 = -6 - 10

2x = -6 - 10

2x = -16

x = -8
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