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Vika [28.1K]
3 years ago
11

Find the vertex of the function given below. y = 3x2 + 6x +1

Mathematics
1 answer:
anastassius [24]3 years ago
8 0

Answer: The coordinates of the vertex are : (-1,-2)

Step-by-step explanation: To find the x coordinate, we use the formula:

Xv = -b/2a = -6/(2.3) = -6/6 = -1

Replacing x by -1, we write:

y = 3. (-1)^2 + 6. (-1) +1 = 3 - 6 + 1 = -2

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Hi could somebody help me
alexandr402 [8]

Assuming both vertical lines are parallel and assuming I'm supposed to find all the unmarked angles...

Angle C:

Supplementary Angles.

x+36=180

180-36=x

x=144

Angle B:

Corresponding Angles.

Angle B ≅ Angle C

144

Angle A:

360 degrees in a quadrilateral

36+144+81+x=360

261+x=360

x = 99

<em>Hope it helps <3</em>

5 0
2 years ago
Brainiest will be given . Please help me
mixas84 [53]

Answer:

If the shape of end face has n sides

Then, in total, there are n+2 faces

Using that formula

Faces in 20-sided polygon = n+2 = 20+2 = 22

Step-by-step explanation:

Pls vote as brainliest

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2 years ago
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Svetach [21]
<span>C) salt water is the correct answer.</span>
7 0
3 years ago
What is the value of a in the equation 5a – 10b = 45, when b = 3?
LenKa [72]
5a - 10*3 = 45
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6 0
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