What is the inverse of the function f(x) = 2x + 1?
1 answer:
<em><u>Inverse</u></em><em><u> </u></em><em><u>Of</u></em><em><u> </u></em><em><u>Functions</u></em>
I use a certain way to find the inverse of a function.
Replace H(x) with y.
y=2x+1
Replace y and x.
x=2y+1
Find y.
x-1=2y
Divide both sides by two.
x-1/2=y
<em>The</em><em> </em><em>Answer</em><em> </em><em>Is</em>
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Answer:
The cutoff sales level is 10.7436 millions of dollars
Step-by-step explanation:
Problems of normally distributed samples are solved using the z-score formula.
In a set with mean and standard deviation
, the zscore of a measure X is given by:
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.
In this problem, we have that:
15th percentile:
X when Z has a pvalue of 0.15. So X when Z = -1.047.
The cutoff sales level is 10.7436 millions of dollars