2+9n=72 how do you find what n equals?
1 answer:
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Answer:
Step-by-step explanation:
The given equation is
For this function to have an inverse, we must restrict the domain, say
We interchange x and y to get,
We now make y the subject to get;
We divide through by 16 to get;
We now take the square root of both sides to get;
Since , the inverse function is
The missing value x=3 is obtained by the concept of slope in coordinate geometry.
<h3>What is slope?</h3>Positive or negative rates of change are both possible. Since the slope of a line is determined by the ratio of the vertical and horizontal change between any two locations on a plane or line, the slope is determined by the rise to run ratio. Where, Rise is the difference in elevation between two points. The horizontal shift between two places is known as a run.
Formula of slope = (equation 1)
According to the question the coordinates are: xi=2, x2=x, y1=6, y2=10
Given, rate of change=4 (here rate of change=slope)
Putting all coordinates in equation 1
Slope=
4=4/x-2
x-2=1
x=3
Therefore, the missing value x=3
To know more about slope visit:
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Answer:
50%
Step-by-step explanation:
The percentage of people between 20 and 37 years old.
From the attached box plot :
Number of people aged up to 20 marks the lower quartile of the distribution = lower 25%
Number of people aged up to 37 marks the upper quartile of the distribution = lower 75%
Hence, percentage number of people aged between 20 and 37 equals
Q3 - Q1 = 75% - 25% = 50%
