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2 years ago

Set up Proportion and solve for X

Mathematics

2 answers:

Komok [63]2 years ago

6 0

Answer:

x/90 = 13/130(you can simplify this btw)

x90 x90

X = 9

Make both of them ratios

X to 90 and pick another random one 13 to 130.

Make sure to make them equal to eachother then just solve for x.

You can also compare it to 9 to 90

It would still work:

x/90 = 9/90

x90 x90

X = 9, x would also equal 9

Galina-37 [17]2 years ago

3 0

Answer:

x = 9

Step-by-step explanation:

Assuming the rectangles are similar

13 x

------ = ---------

130 90

Using cross products

13*90 = 130*x

Divide each side by 130

13*90/130 = x

x = 9

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(x+x)^2 × -(x×(-1))=4+x-x^2 <br> solve for x, show work.

Anna71 [15]

Answer:

x = 1

x = -5/8 + i* root( 39) / 8

or x = -5/8 - i* root( 39) / 8

Step-by-step explanation:

(x+x)^2 × -(x×(-1))=4+x-x^2

solve for x, show work.

(x+x)^2 × -(x×(-1)) = 4+x-x^2

Simplify:

(2x)^2 * (-(-x)) = 4 + x - x^2

4x*x * (-(-x)) = 4 + x - x*x

4*x*x*x = 4 + x - x*x

4*x*x*x - 4 = x *(1 - x)

4* (xxx - 1) = x * (1- x)

4* (x - 1)*( x*x +x + 1) = x (1 - x)

4( xx + x + 1) = -x

x = 1 is a solution.

4xx + 4x + 4 = -x

4xx + 5x + 4 = 0

x = -5/8 + root(25 - 4*4*4) / 2*4

x = -5/8 + i* root( 39) / 8

or x = -5/8 - i* root( 39) / 8

also x = 1

6 0

2 years ago

Calcular x en: los datos q faltan

Taya2010 [7]

Answer:

x = 13

Step-by-step explanation:

No se exactamente como decir esto porque yo ayudo la majoria de los usuario en ingles pero hay que usar un método para describir a x

Un método que se llama Pythagorean theorem

Pythagorean theorem: a^2 + b^2 = c^2 donde a^2 = 5 b^2 = 12 y c^2 = x

Entonces…

5^2 + 12^2 = c^2

Nota: podemos ver que esto esta bien porque el sum de los dos lados suma el mas largo.

Ahora

25 + 144 = c^2

c^2 = 169

Pero eso no puede ser la respuesta porque no tiene sentido a que x sea un lado que mide 169 entonces tenemos que usar sqrt rt

sqrt rt de 169 = 13

x = 13

4 0

2 years ago

A factory has two types of employees line workers and Mananger

denis-greek [22]

Step-by-step explanation:

Read this article to learn about the types, functions, advantages and conflicts of line and staff organisation.

Types of Staff:

1. Personal Staff:

Personal staff is attached to individual line officers. The Personal Assistant or the Private Secretary etc. form personal staff of line managers. These persons help their bosses in every possible way. The routine work of line officers is mostly handled by the personal staff. They fix routine meetings, open the post, maintain diaries and accompany the boss on official visits. The line officers are spared of routine works and are able to devote much time for planning and execution.

2. Specialist Staff:

These are technically qualified persons who provide service to the whole organisation. They serve line and other staff in planning, organizing and coordinating their work. Their specialized knowledge is an asset to the organisation. The appointment of a legal advisor may be helpful to every department where his advice is required.

3. General Staff:

ADVERTISEMENTS:

This staff consists of persons attached to the key executives. They have the same background as that of line officers. They are attached to important functionaries as their deputies, etc. They may be appointed as Deputy Managers, Assistant Managers, Special Assistants, etc.

Functions of Staff Authority:

The staff authority is assigned the following functions:

1. Agency of Control:

It has to discharge the functions such as:

(a) Organisation;