3 years ago

Which table does NOT represent a function?

Mathematics

1 answer:

Studentka2010 [4]3 years ago

4 0

First one and second one if not 2 it will be 2 one

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What is the equation of the parabola in vertex form with vertex (2,-4) and directrix y=-6

Pachacha [2.7K]

Answer:

$y=\dfrac{1}{8}(x-2)^2-4$

Step-by-step explanation:

The directrix y=-6 is parallel to the x axes, so parabola has equation of the form

$(x-x_0)^2=2px(y-y_0),$

where $(x_0,y_0)$ is the vertex of parabola and p is parabola's parameter.

By the definition, $\frac{p}{2}$ is the distance from the vertex to the directrix, so

$\dfrac{p}{2}=2\Rightarrow p=4$

Hence, the equation of parabola is

$(x-2)^2=8(y+4)$

See attached diagram for the graph of parabola and its directrix.

In vertex form this equation is

$y=\dfrac{1}{8}(x-2)^2-4$

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3 years ago

Over the summer, the facility manager of a public swimming pool collected information on the amount of water in the pool and the

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C, both numbers form a mostly linear relationship.

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The article "Snow Cover and Temperature Relationships in North America and Eurasia"† used statistical techniques to relate the a

poizon [28]

Answer:

Step-by-step explanation:

From the given information,

The ten observation data on october snow cover for Eurasia during the years is 6.5, 12.0, 14.9, 10.0, 10.7, 7.9, 21.9, 12.5, 14.5, 9.2

What would you report as a representative, or typical, value of October snow cover for this period, and what prompted your choice?

For the given data, 21.9 is an outlier, so trimmed mean would be good choice for the researcher,

Remove the smallest and the largest values to compute the trimmed mean

$\bar x = \frac{12.0+14.9+10.0+10.7+7.9+12.5+14.5+9.2}{8} \\\\=\frac{91.7}{8} \\\\=11.465$

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Ms.Perozo is decorating a square bulletin board. She used exactly 312 centimeters of checkered ribbon to create a border. Now he

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Its a squere so divide 312 by 4=78

then tou can finsd the area

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thanks hope this helps!:)

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3 years ago

Whats the whole number that equals 6/3

Alexxx [7]

You must simplify it to find the answer. You get 2 over 1 which equals just 2.

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3 years ago