Answer:
Standard form of 
Step-by-step explanation:
Here, the given expression is
Now, simplifying the above expression in parts, we get
hence, combining both parts:
= 
The above expression is of the STANDARD FORM: 
Hence, the standard form of
The Center Pays<span> $0.002 For </span><span>Each Kilogram</span>
For the first one it’s b and I’m sorry but I’m not sure about the second
Answer:
NO amount of hour passed between two consecutive times when the water in the tank is at its maximum height
Step-by-step explanation:
Given the water tank level modelled by the function h(t)=8cos(pi t /7)+11.5. At maximum height, the velocity of the water tank is zero
Velocity is the change in distance with respect to time.
V = {d(h(t)}/dt = -8π/7sin(πt/7)
At maximum height, -8π/7sin(πt/7) = 0
-Sin(πt/7) = 0
sin(πt/7) = 0
Taking the arcsin of both sides
arcsin(sin(πt/7)) = arcsin0
πt/7 = 0
t = 0
This shows that NO hour passed between two consecutive times when the water in the tank is at its maximum height
