Find the indicated partial sum for the sequence with the given general term. s3, an = (n + 2)(n - 6)
A. -31
B. 98
C. 46
D. -46
Answer: D
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Solve the problem.Linda invests src="https://sciemce.com/media/4/ppg__tttt0515191515__f1q124g6.jpg" alt="" style="vertical-align: -4.0px;" /> and 
for one year. Part is invested at 
, another part at 
, and the rest at 
. The total income from all 3 investments is 
. The combined income from the 
investments is the same as the income from the 
investment. Find the amount invested at each rate.
A. $10,000 at 5%; $10,000 at 6%; $5000 at 8%
B. $10,000 at 5%; $5000 at 6%; $10,000 at 8%
C. $8000 at 5%; $10,000 at 6%; $7000 at 8%
D. $5000 at 5%; $10,000 at 6%; $10,000 at 8%
Find the indicated maxima or minima.Minimum of f(x,y) = x2 - 14x + y2 - 16y,subject to 2x + 3y = 12
A. -24 when x = 2, y = 0 B. -15 when x = 0, y = 1 C. -61 when x = 3, y = 2 D. -68 when x = 1, y = 5
Multiply.5x2(-3x2 + 5x + 4)
A. -15x4 + 25x3 + 20x2 B. -15x4 + 25x + 20 C. 2x4 + 10x + 9 D. -15x4 + 25x2 + 20
Write an expression for the nth term of the geometric sequence. Then find the indicated term. (Round your answer to three decimal places.)
?
?
A. 
, About 15.456
B. 
, About 982.073
C. 
, About 327.358
D. 
, About 327.358
E. 
, About 15.456