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finlep [7]
3 years ago
6

Help me for brainlist if you dont explain no brainlist

Mathematics
1 answer:
olchik [2.2K]3 years ago
3 0

- 2x and 70 are equal, because they are vertical angles.

- 110 and 3x + 5 are equal, becasue they are vertical angles.

- so, the answer would be A.

-- this is because vertical angles are not supplementary so would not be equal to 180°

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Then solve each problen
marysya [2.9K]

Answer:

75

a(0.80)=60

a=60/0.80

a=75

8 0
2 years ago
-x^2+2x-8=0 factoring
kramer

(-x-2) (x-4) are the factor of this equation

6 0
3 years ago
HOW DO I FIND QR<br><br> PLEASE HELP
Paul [167]

Solution: For finding QR we need to apply Pythagoras Theorem

What is Pythagoras Theorem ?

ans : Pythagoras Theorem is the sum of square of two sides which is equal to the third side or the hypotenuse. This formula is valid oy incase of Right-Angled Traingle because one of three angles here is 90°

According to this law let's apply it in the diagram shown here.

  • (Hypotenuse)² = (Adjacent)² + (Opposite)²

  • (PR)² = (QR)² + (PQ)²

  • (5x - 2)² = (QR)² + (3x - 1)²

  • (QR)² = (5x - 2)² - (3x - 1)²

After factorising both of them we get

  • (QR)² = 25x² - 20x + 4 - (9x² - 6x + 1)

  • (QR)² = 25x² - 20x + 4 - 9x² + 6x - 1

  • (QR)² = 16x² - 14x + 3

  • QR = √(16x² - 14x + 3)

So, QR is √(16x² - 14x + 3)

8 0
2 years ago
How many triangles can be constructed with the sides measuring 1m, 2m, and 2m.
Pachacha [2.7K]

Answer:Only one triangle can be constructed


Step-by-step explanation:

According to the question sides given are 1m, 2m and 2m

For the possibility of a triangle the sum of the two sides must be greater

than the third side

We have 1+2>2

⇒3>2

Also 2+2>1

⇒4>1

So  the possibility of a triangle is fulfilled

Only an isosceles triangle can be constructed

as two sides are equal

3 0
2 years ago
Plz help I dont get it
mamaluj [8]

Answer:

A

Step-by-step explanation:

The required answer but,i may be wrong.

8 0
2 years ago
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