F(g(x)) means you take the g function and put it into x in the f function. He took the function and put it into the g, which was the incorrect order. He should have had this:
Answer:
The scientific notation will be Letter D
The answer is C because that's is a 90 degree angle. So you just subtract 70 from 90.
Answer:
3/2 or 1 1/2
Step-by-step explanation: