Answer:
Step-by-step explanation:
Given function f(x) = 3x + 2
The inverse of f(x) is f⁻¹(x)
Follow the steps below to solve for f⁻¹(x).
1. Replace function f(x) with function y in the given equation
y = 3x + 2
2. Interchange the variables
x = 3y - 2
3. Solve for y
3y = x + 2
![y = \frac{x }{3} + \frac{2}{3}](https://tex.z-dn.net/?f=y%20%3D%20%5Cfrac%7Bx%20%7D%7B3%7D%20%2B%20%5Cfrac%7B2%7D%7B3%7D)
![y = \frac{x + 2}{3}](https://tex.z-dn.net/?f=y%20%3D%20%5Cfrac%7Bx%20%2B%202%7D%7B3%7D)
4. Replace y with f⁻¹(x)
You add extra zeroes until all numbers have the same quantity. in this case, 2.303 has three numbers after the decimal, so the other three number need it too. 2.300, 2.330, and 2.030. now that you have all of them looking the same now, you can tell which is least and work from there: 2.030 is the least, then 2.300, 2.303 then 2.330 is the largest.
Answer:
A company produces electric insulators. The strength of the insulators is important since a broken insulator may cause a short circuit. Unfortunately, the strength varies significantly due to the material. Because of the expense, only a limited number of insulators could be tested. The engineers sampled 25 insulators (From a production run of 200), and conducted a destructive test to determine the force that was required to break the insulators. The mean value of this force was 1723 lbf with a sample standard deviation of 90 lbf. You may approximate the population standard deviation with the sample standard deviation for the following questions. a. Determine if the population is large enough or if a finite population correction (FPC) factor is needed. If so, what is the FPC factor? b. For 95% confidence, determine the margin of error (+ lbf) c. For these conditions, estimate the range of the probable population mean. Provide lower and upper values. For 95% confidence, determine the margin of error ( Assume the same mean and sample standard deviation. What is one advantage and one disadvantage of using 50 insulators instead of 25 insulators? d. lbf) if 50 insulators were tested.
Step-by-step explanation:
Answer: 7 Answers Incorrect
Step-by-step explanation:
86% may be written as (86/100) or as 0.86.
Since "it's a ratio (sic.) problem," then:
86/100 = correct/50
correct = (86/100)*50 (multiply both sides by 50)
correct = 43
And, 50-43 = 7 incorrect
A white an expression that represents the perimeter
Step-by-step explanation:
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