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Murrr4er [49]
2 years ago
15

How to Solve this question

Mathematics
2 answers:
RSB [31]2 years ago
7 0

Answer:

I hope it was helpful...

tekilochka [14]2 years ago
7 0

\huge\mathfrak{\underline{Answer:}}

\huge\bf{=14}

\large\bf{\underline{Given :}}

‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎\large\bf ⟹ x +  \frac{1}{x}  = 4

\large\bf{\underline{To\: find:}}

‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎\large\bf ⟹ {x}^{2}  +  \frac{1}{ {x}^{2} }

\large\bf{\underline{Using\: identity:}}

\boxed{\large\bf\pink{(a+b)^2 = a^2 + b^2 + 2ab}}

‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎\large\bf{⟹(x+\frac{1}{2})^2 = x^2 +(\frac{1}{2}^2) + 2.x.\frac{1}{x} }

‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎\large\bf{⟹(4)^2 = x^2 + \frac{1}{x^2} +2}

‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎\large\bf{⟹16= x^2 + \frac{1}{x^2} +2}

‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎\large\bf{⟹16 - 2= x^2 + \frac{1}{x^2}}

‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎\large\bf{⟹x^2 +\frac{1}{x^2} = 14}

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20 points!!!
Ghella [55]
Area of semi circle: you know the radius is 5. 5^2 * pi = 25pi/2 = 12.5pi
For triangle: bh/2 = (10 * 10)/2 = 50
Add them together: 12.5pi + 50
12.5pi = 39.25
39.25 + 50 = 89.25
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3 years ago
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Sidana [21]

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three different accounts are described below. order the accounts to their values after 10 years, from greatest to least.
Sedbober [7]

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Vladimir [108]
Let x be the number of racing bikes, and let y be the number of mountain bikes.
1) 140x + 110y = 26150
2) 180x + 120y = 31800
Solve for one of the variables and plug that in to the other equation:
From equation 1: 140x = 26150 - 110y
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Plug this into equation 2:
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3 years ago
What is the slope of a line perpendicular to the line whose equation is x−2y=12.
seraphim [82]

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-2/x

Step-by-step explanation:

simplified is y = -x/2 - 6

Perpendicular slopes are just reciprocals of the original slope, so just flipp the original slope around to be the complete opposite.

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Just flip the numerator with the denominator for perpendicular slope

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