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Lapatulllka [165]
2 years ago
6

What is the sum of the geometric sequence-1 6 -36 yes there are 7 terms

Mathematics
2 answers:
vagabundo [1.1K]2 years ago
7 0

Answer:

-39991'

Step-by-step explanation:

We require the sum of 7 terms of the G.S.  -1, 6, -36  .....

The common ratio r = 6/-1 = -6 and the first term = -1.

Sum of n terms = a1 . (r^n  - 1) / (r - 1)

Sum of 7 terms = -1 * (-6)^7 - 1)  / (-6 - 1)

=  -1 * 39991

= -39991 (answer).

amid [387]2 years ago
6 0
-39991 is the awnser
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dentify the vertical asymptotes of f(x) = quantity x plus 6 over quantity x squared minus 9x plus 18.
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So the function we're dealing with is

f(x) = \frac{x+6}{x^{2}-9x+18 }

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Therefore, the vertical asymptotes are at x = 3 and x = 6 
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2 years ago
Use the following graph of the function f(x) = −3x4 − x3 + 3x2 + x + 3 to answer this question: What is the average rate of chan
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the average rate of change is just the slope from (0,f(0)) to (1,f(1))

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6 0
2 years ago
Plz help me!!!!
sveta [45]
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3 years ago
An aquarium with a square base has no top. There is a metal frame. Glass costs 8 dollars/m^2 and the frame costs 7 dollars/m. Th
Irina-Kira [14]
Given that the volume of the aquarium is 20m^3.

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Area of Base = Volume / height = 20/h

Given that the aquarium has a square base.

Area of square = l^2

Thus, the length of the base of the aquarium is \sqrt{area \ of \ base} = \sqrt{ \frac{20}{h} }

The frame is to cover 8 sides with the length equal to the length of the base and 4 sides with the length of the height.

Thus, the total perimeter of the frame is given by 8\sqrt{\frac{20}{h}}+4h= \sqrt{64\left(\frac{20}{h}\right)}+4h = \sqrt{\frac{1,280}{h}}+4h

Area of the four side faces of the aquarium is 4 times the length of the base times the height = 4\times\sqrt{ \frac{20}{h} }\times h=\sqrt{16\left(\frac{20}{h}\right)h^2}=\sqrt{320h}

Total area to be covered by grass is the base and the four side faces and is given by \frac{20}{h}+\sqrt{320h}

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Cost of the entire grass = 8\left(\frac{20}{h}+\sqrt{320h}\right)=\frac{160}{h}+\sqrt{64(320h)}=\frac{160}{h}+\sqrt{20,480h

Therefore, total cost in terms of the height, h, is given by

C=\sqrt{\frac{62,720}{h}}+28h+\frac{160}{h}+\sqrt{20,480h
3 0
3 years ago
Will give BRAINLIEST to the correct answer!!!
iren2701 [21]
Here is a key that showed up online

8 0
3 years ago
Read 2 more answers
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