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VLD [36.1K]
2 years ago
15

30 POINTS!! Find the equation of the axis of symmetry of the parabola. Each box in the grid represents 1 unit.

Mathematics
1 answer:
Pachacha [2.7K]2 years ago
7 0
The axis of symmetry is at X = 2
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y=-\frac{x}{3}-2+2

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nadezda [96]
The sample size should be 250.

Our margin of error is 4%, or 0.04.  We use the formula

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Using a z-table (http://www.z-table.com) we see that this value has a z-score of approximately 2.33.  Using this, our margin of error and our proportion, we have:

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Divide both sides by 2.33:
\frac{0.04}{2.33}=\sqrt{\frac{0.08(0.92)}{n}}

Square both sides:
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3 years ago
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What is the exact value of x in the exponential equation 4 + e3x = 24?
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Answer:

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