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Bad White [126]
3 years ago
15

Find the coordinates of the point of intersection of the graphs of lines: y=1−2x and y=x−5

Mathematics
1 answer:
koban [17]3 years ago
5 0

To find the point of intersection, you have to set them equal to each other.

1 - 2x = x - 5\\\\-2x - x = -5 - 1\\\\-3x = -6\\\\x = 2

To find the y-value, plug in 2 into one of the equations:

y = 2 - 5

y = -3

Point of intersection: (2, -3)

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8×4=(A×7)-(A×3)<br>what is the value of A in the equation shown??​
Pani-rosa [81]

Answer:

Step-by-step explanation:

8×4 = (A×7) - (A×3) = A(7-3) = A×4

A = 8

4 0
3 years ago
Solve this equation using elimination: 4x-y=8;6x+y=2
fomenos
Solve simultaneously.

4x - y = 8
6x + y = 2


Multiply top equation by 6, and bottom equation by 4, to eliminate x, so that we can find y.
~
24x - 6y = 48
24x - 4y = 8

Subtract top from bottom to form one equation.
~
-2y = 40
Therefore y is 20.

Put y back in to an equation, such as 4x - y = 8.
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4x - 20 = 8
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7 0
3 years ago
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beks73 [17]

Answer:

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3 0
2 years ago
The area of a rectangular of length L width W is given by the formula A =LW. Ann's backyard is rectangular with a length of 27.6
marta [7]

300.84m^2

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Next, multiply(use a calculator)

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3 0
3 years ago
Using sine and cosine, explain how you know where the graph of tangent will
notsponge [240]

Remember how the tangent function is defined as

\frac{sinx}{cosx}

Now where exactly are the vertical assymptotes? Well, where cosx = 0, because  anything over 0 is undefined, and where a value is undefined, you are required to draw  a vertical assymptote.  

Now where exactly are the x interecepts? Well, where sinx = 0, because remember, an x-intercept  is where y = 0, or where it crosses the x-axis, meaning where the tangent function is equal to 0.

So the x-intercepts are at where sinx = 0.

4 0
2 years ago
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