Perform the indicated operations. Write the resulting polynomial in standard form.(4x - 12)(4x + 12)
A. 4x2 + 96x - 144
B. 16x2 + 96x - 144
C. 16x2 - 144
D. 16x2 - 96x - 144
Answer: C
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Solve the problem.The logistic growth function f(t) = 
models the number of people who have become ill with a particular infection t weeks after its initial outbreak in a particular community. What is the limiting size of the population that becomes ill?
A. 19,000 people B. 38,000 people C. 950 people D. 949 people
A 100-gallon tank is full of a solution containing 25 pounds of a concentrate. Starting at time 
distilled water is admitted to the tank at the rate of 5 gallons per minute, and the well-stirred solution is withdrawn at the same rate.
(a) Find the amount Q of the concentrate in the solution as a function of 
by solving the differential equation 
(b) Find the time required for the amount of concentrate in the tank to reach 15 pounds.
A. a.
b.
min
?
B. a.
b.
min
?
C. a.
b.
min
?
D. a.
b. min
?
E. a.
b. min
?
Which set of parametric equations represents the following line or conic?
Use 
and
Line: passes through ( 3,6 ) and ( -5, -2 )
a. 
b. 
c. 
d. 
e. 
Simplify. Assume all variables and radicands represent nonnegative real numbers.
A. p
B. 
C. 
D. 