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3 years ago

Square root of 8.8 up to two decimal step by step explanation

Mathematics

1 answer:

telo118 [61]3 years ago

3 0

Answer:

2.97

Step-by-step explanation:

8.8 = 4 *2.2 = 4 * 220/100

220 = 4 *55

8.8 = (4 *4*55)/100 = 16 *55/100

$\sqrt{8.8} =\sqrt{(16 * 55)}/\sqrt{100\\}$

$\sqrt{8.8}= \frac{4}{10}*\sqrt{55}$

≈ $\sqrt{8.8} = 0.4 * 7.416 = 2.9664 \\2.97$

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For this case we have that by definition, an equation of the line of the slope-intersection form is given by:

$y = mx + b$

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m: It's the slope

b: It is the cut-off point with the y axis

We have two points through which the line passes, then we find the slope:

$(x1, y1): (- 1, -5)\\(x2, y2): (- 3, -7)$

$m = \frac {y2-y1} {x2-x1} = \frac {-7 - (- 5)} {- 3 - (- 1)} = \frac {-7 + 5} {- 3 + 1} = \frac {-2} {- 2} = 1$

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Answer:

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3 years ago

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The sum of the first n terms of an arithmetic series is n/2(3n-5). If the second and fourth terms of the arithmetic series are t

sergiy2304 [10]

Let a be the first term in the arithmetic sequence. Since it's arithmetic, consecutive terms in the sequence differ by a constant d, so the sequence is

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The sum of the first n terms of this sequence is given:

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We can simplify the left side as

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so that

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Let b be the first term in the geometric sequence. Consecutive terms in this sequence are scaled by a fixed factor r, so the sequence is

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Subtract this from S, then solve for S :

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$S = \dfrac1{32}\cdot\dfrac{1-\dfrac1{2^{11}}}{1-\dfrac12} = \boxed{\dfrac{2047}{32768}}$

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3 years ago

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Gre4nikov [31]

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Answer

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