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. 
c.
Mathematics
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Find the required limit or indicate that it does not exist.
A. 
i - 8j
B. 
i + 8j
C. 
i - 2j
D. 
i + 8j
Mathematics
Find the derivative of the function at the given point in the direction of A.
A = 4i - 3j
A. 
B. - 
C. - 
D. 
Mathematics
Multiply. Simplify your answer if possible.8(x + 3y + 4)
A. 8x + 3y + 4 B. 8x + 24y + 32 C. 8x - 24y - 32 D. 8x + 24y + 4
Mathematics
State whether the slope of the line is positive, negative, zero, or undefined.
A. negative B. undefined C. zero D. positive
Mathematics