Provide an appropriate response.A student is trying to solve the equation (x + 2)(x - 4) = 6. The student has set x + 2 = 6 and x - 4 = 6 and found that two solutions x = 4, x = 10. The student checks his or her results by plugging in his or her solutions into the original equation and finds that they do not work. How would you advise him or her?
What will be an ideal response?
The equation needs to be set to zero in order to use the zero-factor theorem.
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Answer the question.In 2000 your salary increased by 5% . In 2001 you received a 5% pay cut. After the two changes, how does your salary compare to your original salary?
A. Cannot be determined from the information given B. It is lower. C. It is higher. D. It is unchanged.
Solve.Newton's Law of Cooling states that if a body with temperature T1 is placed in surroundings with temperature T0 different from T1, then the body will either cool or warm to temperature T(t) after time t, in minutes, where 
A cup of coffee with temperature 105°F is placed in a freezer with temperature 0°F. After 5 minutes, the temperature of the coffee is 69.3°F. What will its temperature be 20 minutes after it is placed in the freezer? Round your answer to the nearest degree.
A. 18°F B. 16°F C. 17°F D. 20°F
Let 
.
?
Use synthetic division to find the value 
.
?
A. 
B. ?
C. ?
D. ?
E. none of these
Solve the problem.The formula A = 210e0.031t models the population of a particular city, in thousands, t years after 1998. When will the population of the city reach 295 thousand?
A. 2010 B. 2012 C. 2009 D. 2011