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Over [174]
3 years ago
13

What is the formula for axis of symitry and vertex of a porabala?

Mathematics
2 answers:
Svetradugi [14.3K]3 years ago
5 0
Axis of symmetry is x=-b/2a

& the coordinate of the vertex (-b/2a, b^2/4a)
blsea [12.9K]3 years ago
3 0
Axis of Symmetry: x = -b/2a
Vertex: y = Ax² + By + c  
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If f(x) = -3x - 5 and g(x) = 4x - 2, find (f+ g)(x)
Sergeeva-Olga [200]

Answer:

(f+g)(x)=f(x)+g(x)

=(-3x-5)+(4x-2)

= -3x-5+4x-2. collect like term

= -3x+4x-5-2

= x-7. the final answer

8 0
2 years ago
If anybody could help me please :,) will give brainliest + 100 points
Alinara [238K]

Answer:

P(B and D) = 0.35

Step-by-step explanation:

It is a probability tree diagram. Here to find P(B and D):

apply method:

P(A and B) = P(A) × P(B)

Here given:

  • P(B) = .5
  • P(D) = .7

So, P(B and D):

  • P(B) × P(D)
  • .5 × .7
  • .35 ≈ 0.35
8 0
2 years ago
Help anyone can help me do this question 3,I will mark brainlest.​
malfutka [58]

Answer:

see explanation

Step-by-step explanation:

Calculate the slopes between pairs of the 3 points using the slope formula

m = \frac{y_{2}-y_{1}  }{x_{2}-x_{1}  }

with (x₁, y₁ ) = (- 9, 3) and (x₂, y₂ ) = (- 3, 9)

m = \frac{9-3}{-3-(-9)} = \frac{6}{-3+9} = \frac{6}{6} = 1

Repeat with (x₁, y₁ ) = (5, 1) and (x₂, y₂ ) = (- 3, 9)

m = \frac{9-1}{-3-5} = \frac{8}{-8} = - 1

If lines are perpendicular then the product of their slopes = - 1 , then

1 × - 1 = -1

Thus there is a right angle between the 2 lines

Then triangle is right- angled

8 0
3 years ago
The pizza below has been cut with 3 diameters what is the m AB<br><br> PLEASE HELP
Drupady [299]

Answer:

79

Step-by-step explanation:

see which ones are vertical to each other and since they are vertical to each other they are the same degree then and all of the numbers you already have and the answer from that subtract it from 360 and them divide it by 2 .

64+64=128

37+37=74

128+74=202

360-202=158

158÷2=79

8 0
3 years ago
Just need help please^^ for a friend
Kamila [148]
T=10.8, was the multiplication Symbol a part of the quest
7 0
3 years ago
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