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andrew11 [14]
2 years ago
7

U will get 15 points pls help

Mathematics
1 answer:
AnnZ [28]2 years ago
8 0
<h2>Answer:</h2>

We need to set up and solve all of the angle measures add up to 180°

3x - 10 + 6x + 5 + 4x - 10 = 180\\\\7x - 15 = 180\\\\7x = 165\\\\x = 24

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+{-x2y+[-(x2y-2xy2+y2)+(-xy2-3y2+x2y)]-(10y2-x2y)}
Kay [80]

Answer:

3xy² -  14y²      

Step-by-step explanation:

I hope that this is the problem

   - x²y + [ - (x²y - 2xy² + y²) + (xy² - 3y² + x²y)] - (10y² - x²y)

= - x²y + [ - x²y + 2xy² - y² + xy² - 3y² + x²y] - 10y² + x²y

Now combine like terms in the [  ].

= - x²y  + [ -x²y + x²y + 2xy² + xy² - y² - 3y² ] - 10y² + x²y

= - x²y  + [ 0 + 3xy² - 4y²] - 10y² + x²y

= - x²y + 3xy² - 4y² -10y² + x²y                      Now combine like terms

=   (-x²y + x²y) + 3xy² + (-4y² - 10y²)

=       0 + 3xy² - 14y²

=  3xy² -  14y²       or    y²(3x - 14)

6 0
2 years ago
Explain the difference between solving an equation with one radical and solving an equation with more than one radical.
Alex_Xolod [135]

Answer:

A radical equation is an equation in which a variable is under a radical. To solve a radical equation: Isolate the radical expression involving the variable. If more than one radical expression involves the variable, then isolate one of them.

Step-by-step explanation:

PLS MAKE ME AS BRAINLIST

8 0
2 years ago
Read 2 more answers
Help with 14, 15, and 16 please ?
lara31 [8.8K]
14. 36x^2 - 16
      4(9x^2 - 4) =
      4(3x + 2)(3x - 2) <==

15. 3x^2 + 10x - 8
      (3x - 2)(x + 4) <==

16. 5x^2 - 16x + 15 = 4x - 5
      5x^2 - 16x - 4x + 15 + 5 = 0
      5x^2 - 20x + 20 = 0
      5(x^2 - 4x + 4)
      5(x - 2)(x - 2)
      x - 2 = 0....x = 2
4 0
3 years ago
How do i answer this
8_murik_8 [283]
Wherever there is an x , plug in 20,000
3 0
2 years ago
Write 13/3 as a decimal
scoundrel [369]
4.33 (rounded off to 2dp)
6 0
3 years ago
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