Hello,
the only bijection is D
Others f^-1(x) have 2 images.
Answer D.
Answer:
Step-by-step explanation:
So we have the expression:
And we wish to factor it.
First, let's make a substitution. Let's let u be equal to x². Therefore, our expression is now:
This is a technique called quadratic u-substitution. Now, we can factor in this form.
We can use the numbers -3 and -2. So:
For the first two terms, factor out a u.
For the last two terms, factor out a -3. So:
Grouping:
Now, substitute back the x² for u:
And this is the simplest form.
And we're done!
Based on the information given the average speed for his trip is 64 miles.
<h3>
Average speed:</h3>
Using this formula
d=rt
r=d/t
Where:
r=rate=?
d=distance=512 miles
t=time=8 hours
Let plug in the formula
r=512/8
r=64 miles
Inconclusion the average speed for his trip is 64 miles.
Learn more about average speed here:brainly.com/question/6504879
Answer:
80cm
Step-by-step explanation:
i worked it out like this
2x4=8
then that means
20x4=80
Answer:
QR and PS
Step-by-step explanation:
Those lines will never touch.