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Oksana_A [137]
3 years ago
13

Help me for 1 year of being cool

Mathematics
1 answer:
RUDIKE [14]3 years ago
7 0

Answer:

I think b

Step-by-step explanation:

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The x-coordinate of the vertex of the equation y = 2x2 − 4x + 12 The x-coordinate of the vertex of the equation y = 4x2 + 8x + 3
dolphi86 [110]

So since the vertex falls onto the axis of symmetry, we can just solve for that to get the x-coordinate of both equations. The equation for the axis of symmetry is x=\frac{-b}{2a}, with b = x coefficient and a = x^2 coefficient. Our equations can be solved as such:

y = 2x^2 − 4x + 12: x=\frac{4}{2*2}=\frac{4}{4}=1

y = 4x^2 + 8x + 3: x=\frac{-8}{2*4}=\frac{-8}{8}=-1

In short, the vertex x-coordinate's of y = 2x^2 − 4x + 12 is 1 while the vertex's x-coordinate of y = 4x^2 + 8x + 3 is -1.

6 0
3 years ago
What is the expectation for a binomial distribution with p = 0.5 and n = 8?
Natasha2012 [34]

Answer: 4

Step-by-step explanation:

Given the following :

P = probability of success = 0.5

n = number of trials = 8

The expected value of a binomial distribution with probability of success P and number of trials n is defined by:

E(n, p) = n * p

Therefore, expected value when P = 0.5 and n = 8

E(8, 0.5) = 8 × 0.5

= 4

The expected value of the binomial distribution is 4

8 0
3 years ago
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Scilla [17]

Answer:

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Step-by-step explanation:

7 0
3 years ago
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My homework says name a 2 digit odd number that is prime. name a 2 digit odd number that is composite.
lidiya [134]
2 digit meaning that it has 2 numbers. For example, 66 is a two digit number.
Now, they also said it must be prime, meaning that its factors can only be 1 and itself. 
Also, it must be odd. 

Answer:  67

Now, do the same, except the number must be composite, as meaning that it has other factors. 

Answer:   21
5 0
3 years ago
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Nina was curious about the height of the Eiffel Tower. She used a 1.2 meter model of the tower and measured its shadow at 2 P.M.
sergeinik [125]
So the tower is going to be larger than the shadow but not to large so let work  from there and not to large so the only logical answer is d
3 0
2 years ago
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