F(x) = x² - 81
Finding f⁻¹(x) the inverse function
Let y = f(x) and solve for x.
y = x² - 81
y + 81 = x²
x² = y + 81
x = √(y + 81)
Recall f(x) = y, that means x = f⁻¹(y)
x = √(y + 81)
f⁻¹(y) = √(y + 81)
Therefore f⁻¹(x) = √(x + 81)
You find the pattern and keep doing it.
<span>Experimental Probability is the ratio of the number of times an event occurs to the total number of trials.
Given that </span><span>Cole
rolls a number cube multiple times and records the data in the table below. At the end of the experiment, he counts that he has rolled 190
fours.
From the table, we see that the total number of trials is 1,000 and there are 190 fours.
Therefore, the experimental probability of rolling a four, based on
Cole’s experiment is given by 190 / 1,000 = 0.19 = 0.190 to the nearest thousandth.</span>
Answer:
Step-by-step explanation:
The probability can be expressed as a number between 0 and 1 or a percent value between zero and 100%.
<u>Correct choice is:</u>
- D. The final number is greater than 1, which is not a valid probability.
