Suppose the rate of change of the interest paid on the public debt of the United States as a percent of federal expenditures can be modeled by 
, where t is the number of years past 1930. Use integration and the fact that in 1975, the interest paid as a percent of Federal Expenditures was 12.7, to find the function D(t) that models the interest paid on the public debt of the United States as a percent of federal expenditures. If it's necessary, round your calculations to three decimal places.
?
A. 
B. 
C. 
D. 
E. 
Answer: B
Mathematics
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Match the equation with the surface it defines.
+ 
= 
A. Figure 4 B. Figure 2 C. Figure 1 D. Figure 3
Mathematics
Determine whether the given geometric series is convergent or divergent, and find the sum if it is convergent.1 + 
+ 
+ 
+ ...
A. Convergent; S = 1.75 B. Divergent C. Convergent; S = 1.3125 D. Convergent; S = 1.1667
Mathematics
Determine algebraically whether the function is even, odd, or neither even nor odd.f(x) = 
A. Even B. Odd C. Neither
Mathematics
Solve the problem.What is the difference in the lengths 6 km and 440 m? Give your answer in meters.
A. 6440 km B. 59,560 m C. 5560 m D. 6440 m
Mathematics