Solve the problem.The function f(t) = -0.13t2 + 0.49t + 31.5 models the U.S. population in millions, ages 65 and older, where t represents years after 1990. The function g(t) = 0.52t2 + 12.45t + 107.3 models the total yearly cost of Medicare in billions of dollars, where t represents years after 1990. What does the function 
represent? Find 
(10).
A. Cost per person in thousands of dollars. $0.08 thousand
B. Cost per person in thousands of dollars. $0.17 thousand
C. Cost per person in thousands of dollars. $9.86 thousand
D. Cost per person in thousands of dollars. $12.13 thousand
Answer: D
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Multiply and express the product in lowest terms.
? 
A. 
B. 
C. 
D. 
State how many complex and real zeros the function has.f(x) = x5 + 7x4 + 2x3 + 14x2 + x + 7
A. 5 complex zeros; 1 real B. 5 complex zeros; all 5 real C. 5 complex zeros; 2 real D. 5 complex zeros; 3 real
Find the area.
A. 338 m2 B. 936 m2 C. 403 m2 D. 468 m2
Solve the problem.A building 290 feet tall casts a 100 foot long shadow. If a person looks down from the top of the building, what is the measure of the angle between the end of the shadow and the vertical side of the building (to the nearest degree)? (Assume the person's eyes are level with the top of the building.)
A. 19° B. 71° C. 20° D. 70°