Answer:
The 3rd one that's what my sis said
Answer:
A bit of a doosy, but bare with me: f*g*h(x) = 
Step-by-step explanation:
So explaining this is a bit awkward as well, but I can try...So
Starting from g(x) working that backwards into f(x), so...
g(x) = 
f(x) = 
Take your g(x) and plug it into your f(x) into every x you see
f(g(x)) =
~ I hope you can visualize this, but do you see how g(x) plugs into f(x)...
Now you still have one more step which you still need to include h(x), so
Remember h(x) = 
Now plug in your h(x) into every x you see from f(g(x)) and it should look like...

Answer:
The plane can fly 760 miles in 4/3 hours.
Step-by-step explanation:
Given that:
An airplane can cruise at 570 miles per hour.
We have to find the distance travelled by train in 4/3 hours.
Distance = Speed * Time
Distance = 
Distance = 
Distance = 760 miles
Hence,
The plane can fly 760 miles in 4/3 hours.
Answer:
−9d+13
Step-by-step explanation:
3d+4−(6d−9)
Distribute the Negative Sign:
=−3d+4+−1(6d−9)
=−3d+4+−1(6d)+(−1)(−9)
=−3d+4+−6d+9
Combine Like Terms:
=−3d+4+−6d+9
=(−3d+−6d)+(4+9)
=−9d+13
Answer:
=−9d+13