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gogolik [260]
2 years ago
12

Attendance at the big game was only 80% of last years attendance, but that still means 12,000 people showed up. how many people

showed up last year?
Mathematics
1 answer:
astraxan [27]2 years ago
8 0
12000*100/80=15000 coz 12000 is 80% that's why you divide by 80 and multiply by 100
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Answer:

There are no real solutions.

Step-by-step explanation:

There are 3 options.

2 real solutions: This happens if in the graph, each arm intersects the x-axis, this means that there are two different values of x such that the equation:

a*x^2 + b*x + c

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Another way to see this, is if the determinant:

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1 real solution: This happens when the vertex of the graph intersects the x-axis. This means that there is a single value of x such that:

a*x^2 + b*x + c

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Another way to see this is if the determinant:

b^2 - 4*a*c

is larger equal zero.

No real solution: if in the graph we can not see any intersection of the x-axis, then we do not have real solutions (only complex ones).

Another way to see this is if the determinant:

b^2 - 4*a*c

is smaller than zero.

Now that we know this, let's look at the graph.

We can see that the vertex is below the x-axis, and the arms of the graph go downwards. So the arms will never intersect the x-axis (and neither the vertex).

So the graph does not intersect the x-axis at any point, which means that there are no real solutions for the quadratic equation.

The correct answer would be "none"

3 0
2 years ago
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Help me on this one for 10 points
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Answer:

m ACG = 17

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2 years ago
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