The following table shows the population of a city in the given year.
19701980199020002010
12921338180619382036?
Use averaging to estimate the population in 2005. Round your answer to the nearest whole number.
A. 2956 people
B. 1987 people
C. 1943 people
D. None of the above
Answer: B
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Solve the problem.In one U.S. town the annual consumption, b, of beef (in kg per person) can be estimated by 
where t is the number of years since 1975. Estimate the beef consumption in the year 1985.
A. About 12 kg per person B. About 15 kg per person C. About 18 kg per person D. About 24 kg per person
Mark as true any statement that is always true. Mark as false any statement that is never true or that is not necessarily true. Be able to justify your answers.
1. If a statement is true then its contrapositive must also be true. 2. If p ? q and q ? r then r ? p. 3. The statement “if p then q” can be read as “q only if p.” 4. If a statement is false, then its converse must also be false. 5. If ?MAD ? ?ROC, then ?DMA ? ?ORC. 6. If two triangles are congruent, then there are exactly three pairs congruent parts—the corresponding angle pairs. 7. In ABC, if AB ? BC then ?BAC ? ?ACB. 8. If AB ? XY , BC ? YZ and ?ABC ? ?XYZ then ?ABC ? ?XYZ 9. In ABC, ABC CBA by corresponding parts (C.P.) 10. If PQ bisects AB, then AP ? BP. 11. To construct a copy of AB, we begin by drawing a new line. 12. The construction of a perpendicular bisector of a segment requires three arcs and one line. 13. The construction of the bisector of an angle requires three arcs and one line.
Determine the integral by making an appropriate substitution.
dx
A. - 
ln
+ C
B. ln
+ C
C. - 
(1 - 3 tan x)1/2 + C
D. (1 - 3 tan x)1/2 + C
E. none of these
Select a verbal description of the algebraic expression without using the variable.
?
?
A. 5 is multiplied by a number decreased by 6 and the product is divided by that number. B. A number increased by 5 and divided by that number. C. 5 is multiplied by a number increased by 6 and the product is divided by that number. D. 6 is multiplied by a number decreased by 5 and the product is divided by that number. E. 6 is multiplied by a number increased by 5 and the product is divided by that number.