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solong [7]
3 years ago
9

Y = x 2 + 6x + 4 Axis of Symmetry: ___________ Vertex: ___________ Sketch:

Mathematics
1 answer:
kozerog [31]3 years ago
3 0

Answer:

Step-by-step explanation:

Here the coefficients of this quadratic are a = 1, b = 6 and c = 4.

                                                -b

The axis of symmetry is x = -------- , which here is x = -6/2, or x = - 3.

                                                 2a

Use the given quadratic to find the vertical coordinate of the vertex:

y = (-3)^2 + 6(-3) + 4 = 9 - 18 + 4 = y = -5.

The axis of symmetry is x = -3, and the vertex is (-3, -5).

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Sliva [168]

Using sampling concepts, it is found that the best way to perform a randomized experiment with the goal of determining if this new hamburger will sell better than the hamburger that is currently sold is as follows:

Randomly select 40 restaurants, let each one decide if it wants to sell the new hamburger, and compare sales in those restaurants to sales in the restaurants that chose not to sell the new hamburger.

<h3>What is sampling?</h3>

It is is a common statistics practice, when we want to study something from a population, we find a sample of this population.

For example:

I want to estimate the proportion of New York state residents who are Buffalo Bills fans. So i ask, lets say, 1000 randomly selected New York state residents whether they are Buffalo Bills fans, and expand this to the entire population of New York State residents.

In this problem, a sample of randomly selected restaurants should be taken to sell the new hamburger, and then be compared with the ones who sell the old hamburger to see if sales increased, hence the correct option is:

Randomly select 40 restaurants, let each one decide if it wants to sell the new hamburger, and compare sales in those restaurants to sales in the restaurants that chose not to sell the new hamburger.

More can be learned about sampling concepts at brainly.com/question/25122507

3 0
2 years ago
Which ordered pairs lie on the graph of the exponential equation ​​ f(x)=3(1/4)^x
zysi [14]
D. I think try that ok
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2 years ago
he school has 800 students with 20 students on the gymnastic team and 10 students on the chess team (including 3 students who ar
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3 years ago
A boat travels for 4 hours at a constant speed of 35. 25 km/h. How far does the boat travel? 105 km 120 km 141 km 352 km.
AleksandrR [38]

Answer:

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Step-by-step explanation:

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