Solve the problem.In an arithmetic sequence with first term P0 and common difference d, the sum of the first 400 terms is given by
A. 100(2P0 + 399d).
B. 200(2P0 + 400d).
C. 200(2P0 + 200d).
D. 100(2P0 + 200d).
E. none of these
Answer: A
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Solve the problem.Four accounting majors, two economics majors, and three marketing majors have interviewed for five different positions with a large company. Find the number of different ways that five of these people could be hired if the first position is to be filled by an accounting major, the second position is to be filled by an economics major, the third position is to be filled by a marketing major, and the last two positions can be filled by any major.
A. 720 B. 48 C. 2,160 D. 4,320
Find a polynomial function f(x) of least possible degree having the graph shown.
A. f(x) = 2(x + 2)2(x - 1) B. f(x) = 2(x - 2)2(x + 1) C. f(x) = -2(x - 2)2(x + 1) D. f(x) = -2(x + 2)2(x - 1)
Multiply.-5(-3)(6)
A. -90 B. 190 C. 90 D. 80
Write the complex number in rectangular form.8
A. 
+ 
i
B. 4
+ 4i
C. 4 + 4
i
D. 
+ 
i