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harkovskaia [24]
3 years ago
12

Draw graph of straight lines to find approximate solution to these simultaneous equations . y = 3x + 7 and 2y + x = 2

Mathematics
1 answer:
Aliun [14]3 years ago
3 0

Answer:

(-1.714, 1.857)

Step-by-step explanation:

Here, we want to find the approximate solution to the system of linear equations

We start by plotting the graph of the lines

We have the plot as shown below;

the red line represents the first equation while the blue line represents the second equation

We have the solution as the point at which the two lines meet

The solution to this is;

(-1.714, 1.857)

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the straight line L has the equation 4y=5x+3. Point A has the coordinates (3,-2) Find the equation of the line straight line tha
Aleonysh [2.5K]

Answer:

y = - \frac{4}{5} x + \frac{2}{5}

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Rearrange 4y = 5x + 3 into this form by dividing the 3 terms by 4

y = \frac{5}{4} x + \frac{3}{4} ← in slope- intercept form

with slope m = \frac{5}{4}

Given a line with slope m then the slope of a line perpendicular to it is

m_{perpendicular} = - \frac{1}{m} = - \frac{1}{\frac{5}{4} } = - \frac{4}{5} , thus

y = - \frac{4}{5} x + c ← is the partial equation

To find c substitute (3, - 2) into the partial equation

- 2 = - \frac{12}{5} + c ⇒ c = - 2 + \frac{12}{5} = \frac{2}{5}

y = - \frac{4}{5} x + \frac{2}{5} ← equation of perpendicular line

4 0
3 years ago
What is 0.75×2 please show your work need a answer today
attashe74 [19]
1.50 that should be it and i dont know how to show my work on a computer SORRY.
8 0
3 years ago
Read 2 more answers
En 6 - 2x = 6x - 10x + 8 .​
Semmy [17]

Step-by-step explanation:

6-2x=6x-10x+8

6-2x=-4x+8

6-8=-4x+2x

-2=-2x

X=-2/-2

X=1

PLS MARK ME AS THE BRAINLIEST

6 0
4 years ago
20 POINTS HURRY QUICK WILL GIVE BRAINLIEST
Mamont248 [21]

Answer:

A function is a rule that takes an input, does something to it,

and gives a unique corresponding output.

There is a special notation, called "function notation," that is used to represent this situation:

if the function name is  f , and the input name is  x ,

Step-by-step explanation:

4 0
4 years ago
PLEASE ANSWER 10 POINTS!
zysi [14]
Here are the areas of the 12 rectangular surfaces that make up the surface area of the podium:

7.5 x 1.5 = 11.25 square feet (Bottom)

1.5 x 1.5 x 2 = 4.5 square feet (Right/Left Bottom Sides)

2.5 x 1.5 x 2 = 7.5 square feet (Right/Left Flat)

1.5 x 1.5 x 2 = 4.5 square feet (Right/Left Top Sides)

2.5 x 1.5 x 2 = 7.5 square feet (Top Front/Back)

2.5 x 1.5 = 3.75 square feet (Top)

7.5 x 1.5 x 2 = 22.5 (Bottom Front and Back)

The area of all these surfaces is 61.5 square feet.
8 0
4 years ago
Read 2 more answers
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