For the given arithmetic series, what is Sn?a1 = 5, d = -5, and n = 11
A. -440
B. -880
C. -215
D. -220
Answer: D
Mathematics
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Determine whether or not the graph is a graph of a function of x.
A. Function B. Not a function
Mathematics
Write an expression in terms of the given variable(s) that represents the indicated quantity.Mark has half as many stickers as Derek. If Derek has d stickers and Mark m stickers, and Derek gives Mark 
stickers, how many stickers does each have in terms of d?
A. Derek: 
+ 10; Mark: d - 10
B. Derek: d - 10; Mark: 
+ 10
C. Derek: 
- 10; Mark: d + 10
D. Derek: d + 10; Mark: 
- 10
Mathematics
Decide whether the pair of lines is parallel, perpendicular, or neither.9x + 3y = 1227x + 9y = 37
A. parallel B. perpendicular C. neither
Mathematics
Verify the identity.
= csc ? + cot ?
What will be an ideal response?
Mathematics