Hello there!
I want you to think of functions as machines! Let's start with one function, and we will call it f. if we were to plug in x to the machine, x would be an input. Let's say we get 1 everyone we plug in x to the f machine. This would mean the 1 is the output! f(x)=1
Now let's talk about composite functions! Let's say we have TWO machines, f and g. If we plug in x to the f machine, then we would get 1. If we plugged that 1 that we got as an output from the f machine into the g machine, then we would have g(1)=5. THIS is how a composite function works. g(1) is actually g(f(x)) because f(x)=1.
I REALLY hope this analogy helps you out! I apologize if it doesn't, however I've noticed that many people have had success in thinking about functions in this way!
If you need more elaboration, feel free to message me!
Best wishes :)
The answer is D. x < 5.
9x+27 <72
9x <72-27
9x <45
x <45÷9
x <5
Answer:
<h2>25 mph</h2>
Step-by-step explanation:
<h3>
Step 1: Convert miles to feet</h3>
First, we need to convert the miles to feet keeping in mind that:
1 mile = 5,280 feet
655 ft 19 sec
5,280 ft 4 min 24 sec
<h3>Step 2: Divide the distance by the time to find the unit rate</h3>
3,447 feet per minute
1,245 feet per minute
<h3>Step 3: Convert minutes to hours</h3>
206,820 feet per hour
74,700 feet per hour
<h3>Step 4: Convert feet to miles</h3>
39.17 miles per hour
14.15 miles per hour
To find how much faster Michael ran, we need one more step.
<h3>Step 5: Subtract smaller amount from larger amount</h3>
39.17 - 14.15 = 25
I'm always happy to help :)
Answer:2m-10
Step-by-step explanation:
