To determine how many acres would minimize cost, we need to differentiate the expression given and set it to zero and obtain the value of x. We do as follows:
C(x) = 0.2x^2 - 12x +240
C'(x) = 0.4x - 12
0 = 0.4x - 12
x = 30 acres <---------amount of flowers needed to minimize cost
Answer:
what do u mean?
Step-by-step explanation:
Answer:
the given expression is equivalent to the 
Step-by-step explanation:
The computation is shown below:
Now applied the exponent rule i.e. presented below:
Hence, the given expression is equivalent to the
Answer:
27-6/12-9
Step-by-step explanation:
27-6/12-9
21/3=7
When the dept of the water is 3/5 of the height of the cone, the radius of the water's surface is 3/5 of the radius of the cone: 1.2 ft. The rate of change of depth is equal to the rate of change of volume divided by the area of the surface:
dh/dt = (dV/dt)/A = (dV/dt)/(π·r²)
= (3/2 ft³/s)/(π·(1.2 ft)²)
= 25/(24π) ft/s ≈ 0.3316 ft/s
