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Masja [62]
3 years ago
8

Someone please help!! i will make you a brainliest...i don’t want to fail:(((

Mathematics
1 answer:
Serggg [28]3 years ago
8 0

Answer:

the fisrt one is y=1/2x

the second one is y=x+11

the third one is y= x^3

fourth on is y= ^3 checkmark x

Step-by-step explanation: your welcome

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Solve the system using substitution. <br><br> 2x + 2y = 30<br> y - 4x = 0<br><br> ( _ , _ )
Kay [80]

Answer:

x = 3

y= 12

Step-by-step explanation:

2x + 2y = 30

y - 4x = 0  /*2

2x + 2y = 30

2y - 8x = 0

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

10x = 30

x = 3

y= 12

7 0
3 years ago
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Solve the quadratic equation below by completing the square. What are the
alexandr1967 [171]

Answer:

the solution is:

Step-by-step explanation:

x2 - 12x + 30 = 23!!

3 0
4 years ago
Anyone know this answer I will give you 28 point.
maks197457 [2]

Answer:

V to X = 68mi

X to W = 50mi

V to W = will be 68mi too

Step-by-step explanation:

note ; it's a triangle*

5 0
3 years ago
a shoe store sells nike amd adidas shoes. joan pays $800 for 3 pairs of adidas shoes and 4 nikes shoes. chris pays $350 for 1 pa
topjm [15]

Answer:

The Nikes cost $125.

The Adidas cost $100

Step-by-step explanation:

Let :

  • a = # of adidas shoes
  • n = # of nike shoes

\left \{ {{3a + 4n = 800} \atop {a + 2n = 350}} \right.

Solve the bottom equation for a:

  • a + 2n = 350
  • a = 350 - 2n

Now substitute this for a in the top equation:

  • 3a + 4n = 800
  • 3(350 - 2n) + 4n = 800
  • 1050 - 6n + 4n = 800
  • 1050 - 2n = 800
  • -2n = -250
  • n = 125

The Nikes costs $125.

We can also solve for the Adidas:

Use the previous equation we made:

  • a = 350 - 2n
  • a = 350 - 2(125)
  • a = 350 - 250
  • a = 100

The Adidas costs $100

-Chetan K

7 0
3 years ago
Figure MNOP is rotated by 180 degrees about the origin in the counterclockwise direction to obtain figure M′N′O′P′:
Inessa [10]
Length of MN = Length of M′N′ is the correct answer. Hope it helps :))
5 0
3 years ago
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