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What’s the dosage ? Of the medicine
Answer:
Domain : { x| x≥3}
Step-by-step explanation:
The domain is the input values ( the x values)
X starts at 3 and goes to infinity
Domain : { x| x≥3}
The sample size needs to be 96.
First we find the z-score for this confidence interval:
Convert 95% to a decimal: 95/100 = 0.95
Subtract from 1: 1 - 0.95 = 0.05
Divide by 2: 0.05/2 = 0.025
Subtract from 1: 1 = 0.025 = 0.975
Using a z-table (http://www.z-table.com) we look up this value in the chart; the z-score that goes with this value is 1.96.
Now we use the formula
3x - 8 = -2 |add 8 to both sides
3x = 6 |divide both sides by 3
<u>x = 2</u>
<em>x - 6 = 2 - 6 = -4</em>