Use the leading coefficient test to determine whether y?? or y?-? as
y = 6x3 + 9x2 - 5x + 4
A. -?
B. ?
Answer: A
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Solve.The sales of a new product (in items per month) can be approximated by 
, where t represents the number of months after the item first becomes available. Find the number of items sold per month 3 months after the item first becomes available.
A. 775 items per month B. 8375 items per month C. 4375 items per month D. 1175 items per month
Solve the problem.The population of a small country increases according to the function B = 2,100,000e0.04t, where t is measured in years. How many people will the country have after 10 years?
A. 1,924,211 people B. 3,132,832 people C. 835,674 people D. 5,274,962 people
Find the value of the function.Given f(x) = 
, find f(-1).
A. 
B. - 3
C. Undefined
D. - 
Solve the problem.What is the coefficient of a3b4c2 in the expansion of (a + b + c)9?
A. 2520 B. 288 C. 40,320 D. 1260