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dusya [7]
3 years ago
6

I have no idea how to do this

Mathematics
1 answer:
astra-53 [7]3 years ago
4 0

#1)  Set them up as y=mx+b

2x+y=4            -subtract 2x on both sides

NEW: y= -2x+4

3x+2y=1             -subtract 3x on both sides of equation

New: 2y= -3x+1             -Divide 2 on both sides (to get Y by itself)

NEW: y= -3/2x + 1/2

Set both Y equation equal to each other

-3/2x+1/2 = -2x+4

solve for x

you should then get x = 7  

plug in x=7 into one of the equations to get y

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Is 16x^2-36x+25^2 a perfect Square trinomial
yulyashka [42]

Answer:

No, middle term should be 40x.

Step-by-step explanation:

16 {x}^{2}  - 2 \times 4x \times 5 +  {25}^{2}  \\   =  {(4x)}^{2}  - 40x +  {5}^{2}  \\  = (4x - 5)^{2}  \\

Hence, for the given trinomial to be a perfect square its middle term should be 40x and not 36x.

6 0
3 years ago
How do you solve for 5/6w = 2/3 (the answer is w= 4/5) I just don’t know how to show it.
Readme [11.4K]

Answer:

5/6w=2/3

5/6(4/5)=2/3

20/30=2/3

20/30=10/15=2/3=2/3

Proof:

5/6w=2/3

6/5*5/6w=2/3*6/5

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w=12/15=4/5

Hope this helps ;) ❤❤❤

6 0
3 years ago
Pls help
Karolina [17]

Answer:

D

Step-by-step explanation:

If we look at the right side of the equation we see that the y-intercept is 2, so we will place a point on (0,2).

Next, we look to see if the slope of the graph if positive or negetive, and to see what is the slope (2x).

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*Note the following:

if < then the line is dotted and the shading will be under the line.

if > then the line is dotted and the shading will be above the line.

if <_ then the line is solid and the shading will be under the line.

if _> then the line is solid and the shading will be above the line.*

It is a lot of information if you look at it, but with practice it can be made easier.

8 0
3 years ago
Answer correct for brainliest and also get a thanks !:-) you don't have to answer B.
skelet666 [1.2K]
I hope this helps you

7 0
3 years ago
Plz answer urgent...A total of 247 students were surveyed about what they liked best for lunch. The results can be shown in a tw
adoni [48]

Answer:

Nein, du schlauer Penner

Step-by-step explanation:

5 0
4 years ago
Read 2 more answers
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