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pashok25 [27]
3 years ago
5

Please help me, sorry if it’s blurry.

Mathematics
2 answers:
slamgirl [31]3 years ago
8 0

Answer:

decagon is 36° 20-gon is 18°

Step-by-step explanation:

divide de number of sides by 360

N/360

10/360= 36

finlep [7]3 years ago
3 0

Answer:

decagon is 36° 20-gon is 18°

Step-by-step explanation:

divide de number of side by 360

N/360

10/360=36

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Reflect across y axis means that you replace x with -x

f(-x)=2(-x)=-2x
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3 years ago
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Mei and Alberto are selling cookie dough. Mei sold 11 packages of chocolate chip and 12 packages of gingerbread for a total of $
ycow [4]

Answer:

The price of a package of chocolate chip is $13.25

The price of a package of gingerbread is $17.18

Step-by-step explanation:

11x + 12y = 352

10x +8y = 270

Let "x" be the price of a package of chocolate chip.

Let "y" be the price of a package of gingerbread.

11x + 12y = 352(Multiply the 1st row by 10)

10x +8y = 270 (Multiply the 2nd row by 11)

-------------------

110x + 120y = 3520

110x +88y = 2970

--------------------------

        3y = 550

y =550/3

y = 17.1875

The price of a package of gingerbread "y" is $17.18

Let's pick the first equation "110x + 120y = 3520"

110x + 120y = 3520

110x+ 120(17.1875)= 3520

110x+2062.5=3520

110x=3520−2062.5

110x=1457.5

x= 1457.5/110

x=13.25

The price of a package of chocolate chip is $13.25

6 0
2 years ago
When factoring to reveal the roots of the equation x² + 2x° - 9x- 18 = 0, which equations
timofeeve [1]
1 and 3 only answer is number 2
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You are given two algebraic equations, y = 3x, and 2y = x + 20. Solve for x and y.
Yuri [45]

Answer:

x= -4 & y=-12

Step-by-step explanation:

multiply y=3x by 2

giving you 2y=6x

subtracting 2y=x+20 from 2y =6x

=> 5x=-20

dividing through by 5

=> x=-4

put x=-4 into y=3x

=> y=3(-4)

<em>y</em><em>=</em><em>-12</em>

7 0
3 years ago
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