Answer:
f=2
Step-by-step explanation:
3=9-3f
3-9=-3f
-6=-3f
2=f
f=2
Answer:1x20x3
Step-by-step explanation: 1 times 20 equals 20 and 20 times 3 equals 60 cubic units. Basically you are just multiplying 3 numbers that equal to 60.
First we are going to find the common denominator of both fractions. To do that, we are going to multiply their denominators:
Now we can rewrite our expression using the common denominator:
Finally, we can use the trig identities:
and
to simplify our trig expression:
We can conclude that the correct answer is the fourth one.
If you factor the trinomial using the AC method the answer would be
(x-3)(x+9)