Evaluate. 73
A. 343
B. 21
C. 216
D. 2187
Answer: A
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Solve the problem.In 1972, 
and 
had the same population. The population of 
continued to increase steadily, while the rate of population growth of 
(although initially less than that of 
) eventually overtook the growth rate of City
#2. The populations of two cities are modeled by the following equations: 
: 
; 
: 
, where 
corresponds to the year 1972. In what year after 1972 did the cities have the same population?
A. 1977
B. 1976
C. 1975
D. 1978
118 college students were interviewed to determine their political party affiliations and whether they favored a balanced-budget amendment to the Constitution. The results of the study are listed in the table, where D represents Democrat and R represents Republican. FavorNot favorUnsureTotalD2227655R506763Total723313118A person is selected at random from the sample. Find the probability that the described person is selected. A person who doesn't favor the amendment. Round your anser to one decimal place.
A. 28.8% B. 25.4% C. 27.9% D. 26.2% E. 28.0%
Write the fraction in simplest form using the method of your choice.
A. 
B. 
C. 
D. 
The probability Professor X gives a pop quiz is 0.7 and the probability Professor Y gives a pop quiz is 0.2.(a) What is the probability both give a pop quiz?(b) What is the probability neither gives a pop quiz?(c) What is the probability Professor X gives a pop quiz and Professor Y doesn't?(d) What is the probability exactly one of them gives a pop quiz?
What will be an ideal response?