Erinkim2292
24.05.2021 •
Mathematics
Line m is parallel to line n, mÐ1 = (x + 8)°, and mÐ2 = (2x - 4)°. If the measure of Ð1 is equal to the measure of Ð2, what is the value of x?
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Ответ:
Explanation:
We use a z-score to calculate this.
The formula for a z-score is z=(X-μ)/σ, where μ is the mean and σ is the standard deviation.
We have z=(334-310)/12 = 24/12 = 2.
Using a z-table, we see that the area under the curve to the left of, or less than, this is 0.9772. We want the area to the right of this, or greater than, so we subtract this from 1:
1-0.9772=0.0228.