Answer:
-2x - 24
Step-by-step explanation:
Therefore, the answer is -2x - 24.
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Answer:
-2 = n
Step-by-step explanation:
-3 + 4n = 4n + 3 + 3n
-3 + 4n = 7n + 3 [Combine like-terms]
-7n -7n
________________
-3 - 3n = 3
+3 +3
________________
-3n = 6
n = -2
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Answer:
yes
Step-by-step explanation:yes
Let h=height of water
Let r=radius of water surface
r/h=16/8 =2, so r=2h.
The volume of water is:
v=(1/3)×π×r²×h
=(1/3)×π×(2h)²×h
=4/3πh³
dv/dh=4πh^2
By chain rule:
dv/dt=dv/dh×dh/dt
but
dv/dt=4
thus:
4=(4πh)×dh/dt
dh/dt=4/(4πh²)
when h=6cm we have:
dh/dt=4/(4π6²)
=0.00884 cm³/min
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
