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Leona [35]
3 years ago
7

Need help

Mathematics
1 answer:
AysviL [449]3 years ago
3 0

-3 -1 i believe is your answer

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Simplify 2√28 - 3√63. I will give BRAINLIEST!
Fofino [41]

2\sqrt{28}-3\sqrt{63}=2\sqrt{4\cdot7}-3\sqrt{9\cdot7}=4\sqrt7-9\sqrt7=-5\sqrt7

3 0
3 years ago
Please help I have no clue what I'm doing!!! Thanks :)
Kamila [148]
A^2 + b^2 = c^2 That's the Pythagorean Theorem
Sin B = b/c
m<A + m<B = 90° because there are 180° in a triangle
4 0
3 years ago
Classify the polygons by the number of sides. Tell whether the polygons are equilateral, equlangular, or regular. Explain your r
Rainbow [258]

Answer:

  1. regular as well as equiangular
  2. equilateral
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8 0
2 years ago
Solve for X. No decimals <br> Help please
r-ruslan [8.4K]

Answer:

x =√25-16

x =√9

x =3

Step-by-step explanation:

I've used the Pythagoras theorem

3 0
3 years ago
Read 2 more answers
What is the value if x ?
dexar [7]

Answer:

x=3

Step-by-step explanation:

We have to use the fact that all angles of a triangle add up to 180 and two supplementary angles add up to 180.

First,QRS forms a line, so angle QRT and angle TRS add up to 180 or, if we call angle TRS y for the sake of having it as a variable, 45x+y=180 or y=180-45x

Now we have all three angles of the triangle, and we know all three add up to 180, so startign with our newly found angle, (180-45x)+(25x)+(57+x)=180

180-45x+25x+57+x=180

237 - 19x = 180

57 = 19x

x=3

Let me know if you need any further explanation.  

7 0
3 years ago
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