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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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How do you solve x in this equation ➡️ 2x-14=10 // And to simplify it for the answer??!!!
DENIUS [597]
So we start by getting x on one side of the equals sign

2x-14=10
   +14 +14

2x=24

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x=12
3 0
3 years ago
the table below shows all possibilities of the outcome of rolling two 6-sided number cubes what is the possibility of rolling a
irga5000 [103]

Answer:

Final answer is \frac{5}{36}.

Step-by-step explanation:

Given that two 6-sided number cubes are rolled. Now we need to find about what is the possibility of rolling a sum of 8​.

From the sample space, you can see that there are total 36 possible outcomes.

out of those outcomes, there are only 5 outcomes that has sum = 8

which are {(2,6), (3,5), (4,4), (5,3), (6,2)}.

Hence probability of rolling a sum of 8 =\frac{5}{36}.

Hence final answer is \frac{5}{36}.

6 0
4 years ago
A food packing company makes a popular fruit cocktail.To ensure a good mixture of fruit,there are 3 cherry halves for every 8 wh
melamori03 [73]
You want 3/8 to equal 12/20. You can multiply the 3 by 4. That gets you 12 cherry halves. In order to keep the fractions the same you must also multiply the 8 by 4. Now you have. 12/32

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3 0
3 years ago
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6 0
3 years ago
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What is the surface area of a cylinder that is 5 centimeters high and has a diameter of 1.5 centimeters?
olchik [2.2K]

The surface area of cylinder is 8.625\pi cm^{2}, if the cylinder has 5 centimeters high and 1.5 cm of diameter.

Step-by-step explanation:

The given is,

          Cylinder has a 5 centimeters height

          Diameter of the cylinder is 1.5 centimeters

Step:1

          Formula for the surface area of cylinder is,

                     A=2\pi r h + 2\pi  r^{2}......................................(1)

          Where,

                   h - Height of cylinder

                   r - Radius of cylinder

        From the values of h and r,

                   r=\frac{d}{2}

                      = \frac{1.5}{2}

                   r  = 0.75 cm

       From the formula,

                      = ( 2 × \pi × 0.75 × 5 ) + ( 2 × \pi × 0.75^{2} )

                      = ( 7.5 \pi ) + ( 1.125 \pi )

                  A = 8.625\pi cm^{2}

Result:

        The surface area of cylinder is 8.625\pi cm^{2}, if the cylinder has 5 centimeters high and 1.5 cm of diameter.

3 0
4 years ago
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