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Mariana [72]
3 years ago
15

A scientist needs 15 liters of 25% acid solution for an experiment, but she only has a 10% solution and a 35% solution.How many

liters of the 10% and the 35% solutions should mix to get the solution she needs?
Mathematics
1 answer:
Artyom0805 [142]3 years ago
8 0
By far fcurcutcugvpjvlg chi cig m
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An open box is made from a square piece of cardboard 30 inches on a side by cutting identical squares and turning up the sides.
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Step-by-step explanation:

A)

The length of the box is 30 − 2x inches.

The width of the box is 30 − 2x inches.

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V = x (30 − 2x)²

B)

V(3) = 3 (30 − 6)² = 1728

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V(7) = 7 (30 − 14)² = 1792

As x increases, the volume of the box increases to a maximum and then decreases.

C)

The ends of the domain occur when V = 0.

0 = x (30 − 2x)²

x = 0 or 15

So the domain is (0, 15).

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