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Sav [38]
3 years ago
5

plz help this is hard and i cant figure it out ---------------------------------------------------------------------------------

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Mathematics
1 answer:
Phantasy [73]3 years ago
8 0

Answer:

2

Step-by-step explanation:

these are alternative interior angles so they are equal to each other (congruent) soooo

9x + 4 = 3x + 16

subtract:

9x = 3x + 12

6x = 12

divide

x = 2

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An electronics store offers students a discount
salantis [7]

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83.9357% increase for the buyer

Step-by-step explanation:

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3 years ago
Is 27 a perfect square, a perfect cube, both, or neither?
Sav [38]

Answer:

A perfect cube

Step-by-step explanation:

27 is a perfect cube of 3

{3}^{3}  = 3 \times 3 \times 3 = 27

4 0
3 years ago
URGENT!
Tamiku [17]
Slope=y2-y1/x2-x1
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3 0
3 years ago
Read 2 more answers
The line with equation ax+by=20 passes through the points(-2,10) and (1,5)<br>find a and b
Doss [256]
ax+by=20 \\ \\(-2,10) \\ \\ a*(-2)+b*10 = 20 \\ \\-2a +10b = 20 \\ \\ (1,5)\\ \\ a*1+b*5 = 20 \\ \\ a +5b = 20
 
\begin{cases} -2a+10b =20\\ a+5b =20 \ /*2\end{cases} \\ \\\begin{cases} -2a+10b =20\\ 2a+10b =40 \end{cases}\\--------\\ 20b=60 \ / :20 \\ \\b=\frac{60}{20} =3

-2a+10b=20 \\ \\-2a +10*3=20 \\ \\-2a +30=20\\ \\-2a=20-30\\ \\-2a=-10 \ /: (-2)

a=\frac{10}{2}=5\\ \\\begin{cases} a= 5 \\b=3\end{cases}




6 0
4 years ago
Read 2 more answers
Replace the exponent with a product and then transform the product into a polynomial: (1–y)^2
sveticcg [70]

Answer:

   1-2y+y^2

Step-by-step explanation:

(1–y)^2

(1-y) * (1-y)

FOIL

first: 1*1 =1

outer: 1*-y = -y

inner: -y *1 = -y

last: -y*-y = y^2

Add together: 1+-y-y+y^2  

                      1-2y+y^2

8 0
3 years ago
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