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3 years ago

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Mathematics

2 answers:

ASHA 777 [7]3 years ago

8 0

The length of the side of the square is $\boxed{35{\text{ meter}}}.$

Further Explanation:

The formula of area of square can be expressed as follows,

$\boxed{Area = \left( s \right) \times \left( s\right)}$

The formula of perimeter of the rectangle can be expressed as follows,

$\boxed{{\text{Perimeter}} = 4 \times s}$

Here, s represents the side of square.

Given:

The cost of plugging in a square field is Rs 2450.

The cost for plugging per square meter is Rs 2.

Explanation:

The total area that plugged can be obtained as follows,

$\begin{aligned}{\text{Area}}&= \frac{{{\text{Cost of plugging}}}}{{{\text{cost of per square meter}}}}\\&= \frac{{2450}}{2}\\&= 1225\\\end{aligned}$

The length of the side of the square can be obtained as follows,

$\begin{aligned}{\text{Area}}&= {\left( {\text{S}} \right)^2}\\1225&= {\left( {\text{S}} \right)^2}\\\sqrt {1225} &= {\text{S}}\\35&= {\text{S}}\\\end{aligned}$

The length of the side of the square is $\boxed{35{\text{ meter}}}.$

Learn more:

Learn more about inverse of the functionhttps://brainly.com/question/1632445.
Learn more about equation of circle brainly.com/question/1506955.
Learn more about range and domain of the function brainly.com/question/3412497

Answer details:

Grade: Middle School

Subject: Mathematics

Chapter: Mensuration

Keywords: length, square, area, side of square, width, breadth, area, dimension, measure of sides, dimensions of rectangle, expression, plugging, square field, Rs 2450, 2 per square meter, length of the side.

Alenkinab [10]3 years ago

4 0

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3 years ago

The graph below shows the distance, y, in miles, of a bird from its nest for a certain amount of time, x, in minutes:

Montano1993 [528]

Answer:

$0.2$ miles per minute represents the speed of the bird and 3 miles represents the original distance of the bird from its nest.

Step-by-step explanation:

As there is no graph mentioned here but the information are quite sufficient to answer the question.

We have points $(0,3), (5,4),(10,5)...$

From these points we can find the slope of the line .

From point slope formula $y-y_1=m(x-x_1)$

And assigning $(x,y) (0,3)$ and $(x_1,y_1) (5,4)$

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As by plugging the values of any coordinate point we can confirm this.

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3 years ago

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NemiM [27]

Answer:

Standard error = 0.4

Step-by-step explanation:

Step 1

We find the Standard Deviation

The formula = √(x - mean)/n - 1

n = 15

Mean = 1.93 hours

= √(0- 1.93)² + (0-1.93)² +(0- 1.93)²+( 0- 1.93)²+ (1- 1.93)² + (1- 1.93)² +(1 - 1.93)² +(2 - 1.93)² + (2 - 1.93)² + (2 - 1.93)² + (2 - 1.93)² + ( 2 - 1.93)² +(4 - 1.93)² +(4 - 1.93)² + (5 - 1.93)²/15 - 1

= √(3.737777776 + 3.737777776 + 3.737777776 + 0.871111111 +0.871111111 + 0.871111111 + 0.004444444445+ 0.004444444445 + 0.004444444445 + 0.004444444445 + 0.004444444445 + 1.137777778 + 4.271111112 + 4.271111112 + 9.404444446)/15 - 1

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Step 2

We find the standard error

The formula = Standard Deviation/√n

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n = 15

= 1.533747356/√15

= 1.533747356 /3.87298334621

= 0.39601186447

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