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miskamm [114]
3 years ago
8

What is x equal to ?

Mathematics
1 answer:
rewona [7]3 years ago
4 0
Triangles are congruent
so
4x + 1 = 13
4x = 12
  x = 3

In case you need to find y
2x + y = 8x - 2y
2(3) + y = 8(3) - 2y
6 + y = 24 - 2y
3y = 18
  y = 6

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What errors are shown here? Check all that apply.
Inessa05 [86]

Answer:

-The arrows should be a length of 6

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-The arrows should start at zero

Step-by-step explanation:

Hope this helps!

3 0
3 years ago
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Greatest common factor of 10x^3 - 12x^3
Mila [183]

Answer:2x^3

Step-by-step explanation:

10x^3-12x^3

2x^3(5-6)

7 0
3 years ago
How this is hard and im hating this right now :/
vivado [14]

Answer:

\boxed{\dfrac{y}{x}}

Step-by-step explanation:

\dfrac{\dfrac{1}{x} }{\dfrac{1}{y} } \ \text{can also be written as} \ \dfrac{1}{x} \div \dfrac{1}{y}

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

\rightarrow \dfrac{1}{x} \div \dfrac{1}{y}

<u>Simplifying the expression using "a ÷ b = a x 1/b"</u>

\rightarrow \dfrac{1}{x} \times y

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6 0
2 years ago
Help please!!!!!!!!!!!!!!!!
ankoles [38]
All you would have to do is substitute!
Answer:

First one will be 2
Second one will be 10
Third one will be undefined

Explanation:
So for the first one you are substituting x for -3 so then the equation would look like this: -3^2+9/-3^2, this will equal to 9+9/9 which your answer would be 2 since 18/9 is 2. For the second one it will look like this -1^2+9/-1^2 which would be 1+9/1, this would equal to 10. For the last one it will look like this 0^2+9/0^2 which would just be 0+9/0 9/0 would be undefined.
5 0
3 years ago
Find m∠U.<br> Write your answer as an integer or as a decimal rounded to the nearest tenth.
AleksAgata [21]

Answer:

50.2

Step-by-step explanation:

ut =  \sqrt{ {6}^{2}  +  {5}^{2} }   \\  \sqrt{36 + 25}  \\  \sqrt{61 }  \\ using \: cosine \: rule \\ cos \: u =  \frac{ {5}^{2} + 61 - 36 }{2 \times 5 \times  \sqrt{61} }  \\  \\  =  \frac{25 + 61 - 36}{78}  \\  \\  = \frac{50}{78 }  \\  \cos \: u = 0.64 \\ m \:u = 50.2

3 0
2 years ago
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