This is 5 points but whatever
r(x)=12x
c(x)=5x+20
so
p(x)=r(x)-c(x)
p(x)=(12x)-(5x+20)
p(x)=12x-5x-20
p(x)=7x-20
answer is B
Answer: x=1, y=8
Step-by-step explanation:
Given,
Rate of free fall = 216 km/h
Solution,
km/h to m/s is converted as follows :
So, the rate of fall is 60 m/s.
If t = 20 s
Assume, initial velocity = 0
It will move under the action of gravity.
Using equation of motion,
Hence, this is all for the solution.