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SVETLANKA909090 [29]
3 years ago
10

Sodium chlorate crystals are easy to grow in the shape of cubes by allowing a solution of water and sodium chlorate to evaporate

slowly. If V is the volume of such a cube with side length x, calculate the derivative when x = 4 mm. V'(4) = mm3/mm What does V'(4) mean in this situation?
Mathematics
1 answer:
vichka [17]3 years ago
3 0

Answer:

V'(4) = 48 mm³/mm

V'(4) means that the rate of change of volume with respect to side when the length of the side is 4 mm

Step-by-step explanation:

Data provided in the question

V is the volume of the cube with x as its sides

Also,

Volume of cube = side³

thus,

V = x³ mm³

Now,

Derivative of volume with respect to side x,

\frac{\textup{dv}}{\textup{dx}}  = \frac{d(\textup{x}^3)}{\textup{dx}}

or

\frac{\textup{dv}}{\textup{dx}}  = V'(x) = 3x²

now,

at x = 4 mm

V'(4) = 3(4)²

or

V'(4) = 48 mm³/mm

Here, V'(4) means that the rate of change of volume with respect to side when the length of the side is 4 mm

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