Answer:
Step-by-step explanation:
Answer
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andrew8253
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Answer:
The rate is 15 minutes per meter.
Step-by-step explanation:
It takes 9 minutes to fill a depth of meters.
Filling meters take 9 minutes time.
Filling 3 meters of the aquarium takes = 45 minutes time (Multiplying by 5 both the numbers).
In order to fill 1 meter of the aquarium it will take minutes (Dividing by 3 both the numerical values).
Answer:
The answer is D.............
Step-by-step explanation:
Answer:
The equation of the plane is represented by 
.
Step-by-step explanation:
Algebraically speaking, a plane can be represented by following vectorial product:
(1)
Where:
, 
, 
- Plane coeffcients.
, 
, 
- Coordinates.
We need three distinct points to determine all coefficients. If we know that 
, 
and 
, the system of equations to be solved is:
(1)
(2)
(3)
The solution of this system is 
, 
, 
.
Hence, the equation of the plane is represented by .
Answer:
260 machines for minimum cost.
Step-by-step explanation:
c(x) = 0.3x^2 - 156x + 26.657
Finding the derivative:
c'(x) = 0.6x - 156
0.6x - 156 = 0 for maxm/minm cost.
x = 156 / 0.6
= 260
The second derivative is positive (0.6) so this is a minimum.
