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vlabodo [156]
3 years ago
8

Could you please help me with this problem.

Mathematics
1 answer:
vlabodo [156]3 years ago
6 0

<em>Answer:</em>

<h2><em>x=</em><em>6</em><em>√</em><em>2</em></h2>

<em>please </em><em>see</em><em> the</em><em> attached</em><em> picture</em><em> for</em><em> full</em><em> solution</em><em>.</em><em>.</em><em>.</em>

<em>Hope </em><em>it</em><em> helps</em><em>.</em><em>.</em><em>.</em>

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

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Determine the number of terms, n, given the geometric series -1 - 2 - 4 - 8 - ... and Sn=−31.
Gemiola [76]

Answer:

5

Step-by-step explanation:

We are given the geometric series:

-1, - 2, - 4, - 8.......

In the geometric series above, the common ratio = second term/first term = -2/-1

= 2

Where common ratio is greater than 1(r >1)

The sum of a geometric progression =

Sn = a(rⁿ -1)/r - 1

In the question we are asked to find the number of term = n

Sn = -31

a = -1

r = 2

Hence,

-31 = -1(2ⁿ - 1)/2 - 1

-31 = -1(2ⁿ - 1)

-31 = -2ⁿ + 1

2ⁿ = 1 + 31

2ⁿ = 32

2ⁿ = 2^5

n = 5

Therefore, the number of terms(n) = 5

3 0
3 years ago
2x-9y=26<br> 6x-2y=-22<br> solve by substitution step by step please
lord [1]

Answer:

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Step-by-step explanation:

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3 0
2 years ago
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Novay_Z [31]

Answer:

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Step-by-step explanation:


5 0
3 years ago
The area of a triangular piece of stained glass is 50 square centimeters. If the height (h) of the triangle is four times the ba
lyudmila [28]

Answer:

Height = 20 ; Base = 5

Step-by-step explanation:

Triangle Area = Base x Height x 1/2

50 = 1x × 4x × 1/2

50 = 4x^2 × 1/2

50 = 2x^2

25 = x^2

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Base equals to x -> 1 × 5 = 5

4 0
2 years ago
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Genrish500 [490]
4(b - 6) + 19 # Starting equation
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3 years ago
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