Fill in the blank with one of the words or phrases listed below. Not all choices will be used.
The process of writing a rational expression in lowest terms is called 
.
A. rational expression
B. least common denominator
C. simplifying
D. reciprocals
Answer: C
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Solve the problem.The rate of growth of a population P is given by 
where N is a constant representing the net increase in population per unit time resulting from the difference between immigration and emigration. Solve to find P as a function of time if at time t = 0 the population is P0.
A. P = P0ekt - 
B. P = 
ekt - 
C. P = (P0 + N)ekt - N
D. P = 
ln kt - 
Find the mean, the median, and all the modes for the pay rates in the given frequency distribution. Round your answers to two decimal places.
Solve the problem.A 41-in. piece of string is cut into two pieces. One piece is used to form a circle and the other to form a square. How should the string be cut so that the sum of the areas is a minimum? Round to the nearest tenth, if necessary.
A. Square piece = 0 in., circle piece = 41 in. B. Square piece = 10.1 in., circle piece = 9.7 in. C. Square piece = 9.9 in., circle piece = 31.1 in. D. Circle piece = 9.9 in., square piece = 31.1 in.
Multiply using a special product formula.
A. 121x2 - 
x - 
B. 121x2 - 
C. 121x2 - 
x + 
D. 121x2 - 