Simplify the expression.
- 
+ 
A. 
B. -1
C. 1
D. 
Answer: C
Mathematics
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Determine if the parabola whose equation is given opens upward or downward.y = -4x2 - 2x - 9
A. downward B. upward
Mathematics
List all the elements of B that belong to the given set.B = {1, 
, -15, 0, 
, - 
, 3.5, 
}Integers
A. {1, 0}
B. {1, -15, 0}
C. 
D. 
Mathematics
Which of the given series are absolutely convergent?
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Mathematics
Graph the decimal on a number line.13.75
A. 
B. 
C. 
D. 
Mathematics