Answer:
and 
Step-by-step explanation:
To find the inverse, we will set f(x) equal to y, swap the x and y values, and then solve for y.
Given:
f(x) = x² - 25
Equal to y:
y = x² - 25
Swamp x and y values:
x = y² - 25
Add 25 to both sides of the equation:
y² = x + 25
Square root both sides of the equation:
and 
Interval notation:

Answer: 13/15
Step-by-step explanation:
There are 3 because 12 divided by 4 is 3.
Answer:
The answer to the question is 0.43. Let's explain why.
Step-by-step explanation:
A train arrives at the station at 15-minute intervals starting from 7:00 am which makes the train arrives at;
7:00
7:15
7:30
7:45
8:00
B train arrive at 12-minute intervals starting at 7:07 means B train arrives at;
7:07
7:19
7:31
7:43
7:55
Now, let's review the chances of a passenger arrives at the station any time between 7:00 am and 8:00 am
- If the passenger arrives between 7:00 - 7:07 the passenger will get into B train which gives us the
chance since an hour is 60 minutes and the passenger waited for 7 minutes. - If the passanger arrives between 7:07 - 7:15 passenger will get into A train which gives
chance. If we apply this to the time limits it goes by; - Between 7:15 - 7:19 passenger will go to B destination which gives
chance - Between 7:19 - 7:30 passenger will go to A destination means
chance - Between 7:30 - 7:43 passenger will go to B destination means
chance - Between 7:43 - 7:45 passenger will go to A destination which gives
chance - Between 7:45 - 7:55 passenger will go to B destination means
chance - An lastly between 7:55 - 8:00 passenger will go to A destination which gives us
chance
Now for passenger to go to A destination the total chances are:
= 0.43