dezzy72
18.12.2020 •
Mathematics
Suppose the heights (In Inches) of adult males the United States are normally distributed with a mean of 68 inches and a standard deviation of 2 inches.
Find the percent of men who are between 66 and 68 inches tall.
The percent of men who are between 66 and 68 inches tall is ___%
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Ответ:
(-13,-20)
Step-by-step explanation:
We know that the graph with x-intercept at (7,0) and y-intercept at (0,-7) is y = x-7
and the second equation is y = 2x+6
Therefore, we have two equations.
Because both equations are equal (y=y)
x-7=2x+6
-7-6=2x-x
-13=x
We know the value of x, but not y-value. We substitute the value of x to get the value of y.
Substitute in any given equations which I will be substituting in the first equation.
y=-13-7
y = -20
Therefore when x = -13, y = -20
In coordinate form, we can write as (-13,-20).
If you have any questions, feel free to ask.