Name the curve with the given polar equation. If it is a conic, give its eccentricity.r = 
A. Vertical hyperbola ; e = 8
B. Vertical ellipse: e = 
C. Parabola opening downward; e = 1
D. Parabola opening to the left; e = 1
Answer: C
Mathematics
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Perform the indicated operations.7.8 + (-3.6) + (-4.7)
A. 16.1 B. 6.7 C. -0.5 D. 8.9
Mathematics
Subtract.10 - (-23)
A. 33 B. 13 C. -13 D. -33
Mathematics
Find the sum, if it exists.32 + 
+ 
+ 
+ . . .
A. 4
B. 36
C. 
D. Does not exist
Mathematics
The graph of a linear function f is shown. Identify the slope.
A. -1
B. 0
C. 
D. Undefined
Mathematics