A 1500-liter tank contains 70 liters of a 30% acid solution and you add x liters of a 70% acid solution to the tank. If the function C, which represents the proportion of acid to the total solution in the final mixture, is given by , determine the domain based upon the physical constraints of the problem.

A.
B.
C.
D.
E.


Answer: C

Mathematics

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The following table shows the distance, in feet, that a rock travels t seconds after it is thrown downward.   05101520250480.251760.53840.75672110401.25? Make a new table of values showing the average rate of change in distance over each five-second period.

What will be an ideal response?

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Graph the system of inequalities.2x - y ? 2x + 4y ? 4

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B.

C.

D.

Mathematics

Graph the inequality.(x - 3)2 + (y - 5)2 > 4

A.
B.
C.
D.

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Evaluate yz dy + xy dz, where C is given by x = 10?t , y = 3t, z = 10t², 0 ? t ? 1. Round your answer to two decimal place.

Mathematics