Find the solution or solutions, if any exist, to the system.
A. infinitely many solutions of the form x = -7 - 
z, y = 
z, z = z
B. infinitely many solutions of the form x = 7 - 
z, y = 
z, z = z
C. infinitely many solutions of the form x = -7 - 
z, y = 2z, z = z
D. infinitely many solutions of the form x = 7 - 
z, y = 2z, z = z
Answer: B
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Provide an appropriate response.Tell what you would do if you added the fraction parts of mixed numbers and the result was greater than 1.
What will be an ideal response?
Solve the problem.
Use the graph of the polynomial function f to estimate the 
and to determine whether the leading coefficient is positive or negative.
A. -1, negative B. 1, positive C. -1, positive D. 1, negative
Compute the product.
A. 
B. 
C. 
D. 
A drug is carried into an organ of volume 
cm3 by a liquid that enters the organ at the rate of a cm3/sec and leaves it at the rate of b cm3/sec. The concentration of the drug in the liquid entering the organ is c g/cm3. If the concentration of the drug in the organ at time 
is increasing at the rate of
?
?g/cm3/sec, and the concentration of the drug in the organ initially is 
g/cm3, show that the concentration of the drug in the organ at time 
is given by
?
What will be an ideal response?