Answer:

Step-by-step explanation:
The function

gives the mass of the car as a function of the number of passengers in it.
And the function

gives the potential energy of the car as a function of the car's mass.
Now if the height of the ramp is 30 meters, we have


And to find the potential energy as a function of the number of passengers, we just substitute
into
to get:


which gives the potential energy as a function of the number of passengers.
Answer:
A
Step-by-step explanation:
Tangent is opp over adjacent (square root 3 over 1 = square root 3)
Hope that helped! :))
1) 0.48 3 2) 7/8 3) 7 1/8