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Bad White [126]
2 years ago
9

Equations of lines.

Mathematics
2 answers:
denis23 [38]2 years ago
7 0

Answer:

455455

Step-by-step explanation:

do diddfdcv

musickatia [10]2 years ago
4 0

Answer:

y2 - y1 / x2 - x1

Step-by-step explanation:

You might be interested in
-6x+2y=-18. -3x-2y=54
luda_lava [24]

Answer:

x = -4

y = -21

Step-by-step explanation:

To solve this, we will need to set up a system of equations and get rid of a variable.

-3x - 2y = 54

-6x + 2y = -18

From this, we can see that the 'y' variables can be cancelled out if we add the two together. This means that we must add these equations to each other to cancel out the 'y' variables:

-3x - 2y = 54

-6x + 2y = -18

-------------------- +

-9x = 36

x = -4

Since we have solved for 'x', we can simply plug this value into an equation to find 'y'.

-3(-4) -2y = 54

12 - 2y = 54

-2y = 42

y = -21.

6 0
3 years ago
A guy wire runs from the top of a cell tower to a metal stake in the ground. Lincoln places a 10-foot tall pole to support the g
Lisa [10]

Step-by-step explanation:

2 right triangles are formed.

x is the angle btw wire and grnd

tan x = 10/5 = 2

tanx = ht of tower/(5+14)

2 = tower ht/19

tower ht = 38

length of wire =

\sqrt{ {38}^{2} +  {19}^{2}  }

7 0
2 years ago
What is the simplified form of the following expression
Rasek [7]
The second option is the answer
7 0
3 years ago
If x2 = 20, what is the value of x?
ArbitrLikvidat [17]
The correct answer is the second option: plus or minus square root of 20
Hope this helped :)
3 0
3 years ago
Read 2 more answers
What is the equation of a line with a slope of -2 that passes through the point (6,8)
kakasveta [241]

Answer:

Step-by-step explanation:

hello :

the point-slope formula is :  

y - y_1 = m(x - x_1) the point is A(x_1 , y_1 ) , m : the slope

in this exercice :  x_1 = 6            y_1 = 8             m = -2  

so : y - 8 = -2(x - 6)   ...an equation for this line .

3 0
3 years ago
Read 2 more answers
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