Answer:
add words please
Step-by-step explanation:
i cant understand that ppic
9514 1404 393
Answer:
x -y = -5
3x +y = -11
Step-by-step explanation:
We assume you want two linear equations. Since you know a point on each line, the only thing you need to choose is the slope of the two lines through that point. We can make the slopes be +1 and -3, for example. Then the point-slope equations are ...
y -k = m(x -h) . . . . . . line with slope m through point (h, k)
y -1 = +1(x +4)
y -1 = -3(x +4)
We can use these equations "as is", or put them in whatever form you like. I personally prefer "standard form:" ax+by=c.
<u>First equation</u>:
y -1 = x +4 . . . . . . eliminate parentheses
-5 = x -y . . . . . . . keep positive x term, put x and y together, separate from the constant
x - y = -5 . . . . . . standard form
<u>Second equation</u>:
y -1 = -3x -12 . . . . eliminate parentheses
3x +y = -11 . . . . . . add 3x+1 to both sides
__
A system of equations with solution (-4, 1) is ...
You can use the identity

The sign is negative because the angle is in the 3rd quadrant.
This corresponds to ...
a. -(4√17)/17
Did you mean +7 because there can’t be more than two equal signs
Answer:
The dryer costs $350
Step-by-step explanation:
<u>Step 1: Make a system of equations</u>
<em>w + d = 652</em>
<em>w = d - 48</em>
<em />
<u>Step 2: Plug in the know w into the first equation</u>
d - 48 + d = 652
2d - 48 + 48 = 652 + 48
2d / 2 = 700 / 2
<em>d = 350</em>
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Answer: The dryer costs $350