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blsea [12.9K]
3 years ago
11

Which expressions can never result in a negative real number when evaluated for any value of x? Select all that apply.

Mathematics
1 answer:
DaniilM [7]3 years ago
8 0
5 whshfunrkfnrj sjdbe
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Derive the equation of the parabola with a focus at (0, –4) and a directrix of y = 4. (2 points)
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The vertex of the parabola is between the shortest line connecting its focus and directrix, so between (0, -4) and y = 4 is the point (0, 0), which is the vertex of the parabola. Also, this parabola faces downward.
The general formula for a parabola that faces downward is y = -4cx^2, where c is the distance from the vertex to either to focus or the parabola. Since c = 4, the equation is y = -16x^2, which is choice A.
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Help me please?!?!? Giving brainly!
Igoryamba

Answer:

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Step-by-step explanation:

So, all we have to do is find the difference between the input/output.

So for the first one.

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Ok, so we now know that y is 1/4x

Or in otherwords, 4x is 1y.

Remember x is input, and y is output.

So we can think of this as the input times 4 equals the output.

This seems to be the second answer.

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Which set of points does not represent a function
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If it is a bunch of dots on a graph, then the answer will be the one that has two sets of dots on the same vertical line (the y axis). so if there are two dots right above and below eachother, that graph is the correct answer. 
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Whats 3/2 divided by 8/3 in fraction form
vlada-n [284]

Answer:

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Step-by-step explanation:

3/2 / 8/3 =

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