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monitta
4 years ago
8

What number should be added to each expression to make a perfect square trinomial?

Mathematics
1 answer:
Artist 52 [7]4 years ago
3 0

Answer:

efgsfgbdsrthrtnjwstym

Step-by-step explanation:rcbthhthnj

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Consider triangle ABC where AB=X+5, BC=X-2, area is 30cm squared. Find X by solving X^2+3X-70=0, and find the perimeter.
klasskru [66]

Answer:

What the hell AC is not given so you can't find the Perimeter

Step-by-step explanation:

  • x^2+3x-70=0
  • (x-7)(x+10)=0
  • x-7=0

       x+10=0

  • x=7

       x=-10

AB=x+5

  • AB=12

        AB=-5

BC=x-2

  • BC=5

        BC=-12

Area of ABC = 30cm2

<u>Perimeter of ABC = AB+BC+</u><u>AC</u>

<u />

8 0
3 years ago
What is the x-coordinate of point D? Write the coordinate as a decimal. On a coordinate plane, point D is 2.5 units to the right
kirill115 [55]

Answer:

2.5 right?

Warning: Answer may be wrong. I don`t know, it`s 11 A.M so please forgive me.

7 0
3 years ago
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Can someone help me with number 3, please
oksian1 [2.3K]

Answer:

E

Step-by-step explanation:

We can see that section E of the graph increases, but unlike section B it is much longer and, therefore, increases more slowly.

Hope this helps friend.

4 0
2 years ago
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Rational number<br> between 2 and 3?
oksian1 [2.3K]

Answer:

it would be 7 and 8

Step-by-step explanation:

3 0
3 years ago
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A concert hall has three sections: the main floor, the balcony, and the gallery. For a recent concert, 1020 tickets were sold. T
kakasveta [241]

Answer:

Gallery: g

Balcony: 2g

Main floor: 2g+225

Step-by-step explanation:

4 0
3 years ago
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