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AnnyKZ [126]
3 years ago
8

Write the vertex form of the equation of the parabola which has a vertex of (0,0) and contains the point (1,2). A. Y=2x^2. B. Y=

2(x-1)^2. C. Y=x^2. D. Y=(x+1)^2+1
Mathematics
1 answer:
Aleonysh [2.5K]3 years ago
5 0
General equation of parabola:  y-k = a(x-h)^2

Here the vertex is at (0,0), so we have y-0 = a(x-0)^2, or y = ax^2

All we have to do now is to find the value of the coefficient a.

(1,2) is on the curve.  Therefore, 2 = a(1)^2, or 2 = a(1), or a = 2.

The equation of this parabola is y = 2x^2.
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According to Wine-Searcher, wine critics generally use a wine-scoring scale to communicate their opinions on the relative qualit
Romashka-Z-Leto [24]

Answer:

a

\= x  =  82

b

s =  9.64

Step-by-step explanation:

From the question we are told that

    The data is  87  91  86  82  72  91   60  77  80  79  83  96

Generally the point estimate for the mean is mathematically represented as

    \= x  =  \frac{\sum  x_i }{n}

=>  \= x  =  \frac{87 +91 + 86 + \cdots  + 96}{12}

=>    \= x  =  82

Generally the point estimate for the standard deviation  is mathematically represented as

      s =  \sqrt{\frac{ \sum ( x_i  - \= x )^2 }{ n -1 } }

=>     s =  \sqrt{\frac{ ( 87 - 82  )^2 +( 91 - 82  )^2 + \cdots + ( 96 - 82  )^2  }{ 12 -1 } }

=>     s =  9.64

8 0
3 years ago
Freddy is searching for a shirt and discovers that he has 12 shirts for every 6 pair of jeans. If he has 18 shirts, how many pai
Shtirlitz [24]
The ratio, simplify it
12shirts:6jeans
12/6=2/1
or
2shirts:1jean

18shirts
18/2=9

2shirts times 9=18shirst
2shirts:1jean times 9:9=18shirts:9jeans
answer is 9 pairs of jeans
7 0
3 years ago
Does anyone know the answer
vladimir1956 [14]

Answer:

yes me

Step-by-step explanation:

na jp ion know

3 0
3 years ago
Simplify -4(-9p + -3) +2(-2p + 6)
zalisa [80]

Answer:32p+24

Step-by-step explanation:

-4(-9p + -3) +2(-2p + 6)

36p+12-4p+12

32p+24

Hope it helped you

4 0
3 years ago
What is the slope of the line whose equation is -2/3y - = 0?
Lelechka [254]

Answer:

There is no slope, beacuse there is not a shown X

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
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