They're equivalent expressions
I’m in high school I’m sorry about that
Answer:
There are 842 buttons
Step-by-step explanation:
Add of the numbers to together, which gives you 28 and divide by 7 which makes the arithmetic mean = 4
Answer:
f(-6) = -12
Step-by-step explanation:
If you immediately plug in x=-6 and solve it (x^2-36)/x+6, you will not get the right answer.
You need to first expand the perfect square on the numerator (x^2-36) into (x-6)(x+6).
With the perfect square expanded, notice how you have the term (x+6) on both the numerator and denominator. You can cancel out both terms, and you will be left with (x-6).
Now you can plug in x=-6, which will give you -12.
