Find a formula for the nth partial sum of the series and use it to find the series' sum if the series converges.7 + 14 + 28 + ... + 7 ? 2n-1 + ...
A. 
; 
B. 
; series diverges
C. 
; series diverges
D. 
; 7
Answer: C
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Determine whether the following is always true or not always true. Given reasons for your answers.c(u × v) = cu × cv (any number c)
What will be an ideal response?
Answer as requested.A researcher finds a positive correlation between the amount of wine people drink and the number of friends they have. Which of the following statements must be true? More than one statement may be true.A: People who drink more tend, on average, to have more friends.B: If a person starts drinking more wine, they are likely to find themselves with more friends.C: If a person stops drinking wine, they are likely to find themselves with fewer friends. D: If Anna has more friends then Pierre, she must drink more wine than Pierre.
A. A and B B. A C. B and C D. A and D
Find the vertex of the parabola.y = 2x2 - 20x + 52
A. (-5, -2) B. (2, 5) C. (5, 2) D. (-2, -5)
Answer the question on the order of rational numbers.Make a true statement by inserting <, >, or =;
A. < B. > C. =