Answer:
Step-by-step explanation:
using N as the center and the same radius as before, draw an arc that intersects NO .Label the arc PQ where Q intersects NO.
Part (a):
Turn percentage into a decimal.
26.8% = 0.268
Multiply.
67.5 * 0.268 = 18.09 (Answer)
Part (b):
Divide.
89.87 / 215 = 0.418
Turn into a whole number.
0.418 = 41.8 (Answer)
Turn percentage to a decimal to check.
215% = 2.15
Multiply
41.8 * 2.15 = 89.87
Hope This Helped! Good Luck!
Often, variability is most usefully expressed in the same units as the original data. That's what <em>standard deviation</em> (square root of variance) does. In situations where that is the case, the variance is useful only for getting to the value of standard deviation.
Answer:
x
Step-by-step explanation:
If you multiply a function and its inverse, you will will always get x back.
f-1( f(x) ) = x
Answer: the x-intercept is (-10,0), the y-intercept is (0,45/2)
Explanation:
First, we need to determine the function describing the line.
From the table, it is obvious that the y values increase by 9 every increase of 4 of the x values. So, the slope is 9/4 and the function looks like this:

with the y-intercept (or bias) b still unknown. This can be determined by using one of the point from the table, like so:

The above function form makes it easy to read off the y-intercept, which is (0,45/2) or (0,22.5). The x-intercept is obtained by setting y = 0 and solving for x:

The x-intercept is (-10,0)