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uysha [10]
3 years ago
12

How many solution does the system have 6y+5x=8;2.5x+3y=4

Mathematics
1 answer:
mote1985 [20]3 years ago
6 0
Solve by Elimination:
6y+5x=8
2.5x+3y=4
Multiply the second equations by 2:
5x+6y=8

we know see that both equations are the same line, this means that there is an infinite amount of solutions to the equation

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WILL GIVE BRAINLIEST! EASY! Give detailed answer
pishuonlain [190]
Sure I will give two examples


Application of tangents


1. If we are traveling in a car around a corner and we drive over something slippery on the round ( like water , ice or oil ) , our car starts to skid

It continue in a direction tangent to the curve


Application of tangents

2. Have you ever sat on a merry- go around

If yes , then you would understand

From your experience when I tell you that the force your experience is towards the centre of merry- go around but your velocity ( the tendency of motion) is in the way toward which your body pointing

Another way saying the same thing would be to let you know that your velocity at any point is tangent while force .

At any point is normal to the circle along which you are moving

Can you draw connection between both the ways of saying the same thing?


Have this two example help you
Good luck :D
5 0
4 years ago
The length of a rectangle is 5m less than three times the width, and the area of the rectangle is 50m^(2). Find the dimensions o
Ilia_Sergeevich [38]

Answer:

The width is 5m and the length is 10m.

Step-by-step explanation:

Rectangle:

Has two dimensions: Width(w) and length(l).

It's area is:

A = w*l

The length of a rectangle is 5m less than three times the width

This means that l = 3w - 5

The area of the rectangle is 50m^(2)

This means that A = 50. So

A = w*l

50 = w*(3w - 5)

3w^{2} - 5w - 50 = 0

Solving a quadratic equation:

Given a second order polynomial expressed by the following equation:

ax^{2} + bx + c, a\neq0.

This polynomial has roots x_{1}, x_{2} such that ax^{2} + bx + c = a(x - x_{1})*(x - x_{2}), given by the following formulas:

x_{1} = \frac{-b + \sqrt{\bigtriangleup}}{2*a}

x_{2} = \frac{-b - \sqrt{\bigtriangleup}}{2*a}

\bigtriangleup = b^{2} - 4ac

In this question:

3w^{2} - 5w - 50 = 0

So

a = 3, b = -5, c = -50

\bigtriangleup = (-5)^{2} - 4*3*(-50) = 625

w_{1} = \frac{-(-5) + \sqrt{625}}{2*3} = 5

w_{2} = \frac{-(-5) - \sqrt{625}}{2*3} = -3.33

Dimension must be positive result, so

The width is 5m(in meters because the area is in square meters).

Length:

l = 3w - 5 = 3*5 - 5 = 10

The length is 10 meters

6 0
3 years ago
Find the equation of the line that is parallel to the given line and passes through the given point. y = −6x + 9; (0, 3) The equ
____ [38]
The slope would be the same and plug in the cordinates, so x equals negative 6 plus whatever you got for x when plugging in the cordinates
7 0
3 years ago
Help ASAP please !!!!
Bad White [126]

Answer:

Don't Understand.

Step-by-step explanation:

Need more Information.

3 0
3 years ago
Explain how standard deviation relates to the mean of set data
alexgriva [62]

It is calculated as the square root of variance by determining the variation between each data point relative to themean. If the data points are further from the mean, there is a higherdeviation within the data set; thus, the more spread out the data, the higher the standard deviation.

5 0
3 years ago
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