Solve the problem.Find the average distance from a point 
in the first two quadrants of the disk 
to the origin.
A. 
B. 1
C. 2
D. 
Answer: D
Mathematics
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Find the center, foci, and vertices of the ellipse.
+ 
= 1
A. center at (0, 0)
foci at (0, - 4
) and (0, 4
)
vertices at (0, -9), (0, 9)
B. center at (0, 0)
foci at (0, 9) and (7, 0)
vertices at (0, 81), (49, 0)
C. center at (0, 0)
foci at (0, -9) and (0, 9)
vertices at (0, -81), (0, 81)
D. center at (0, 0)
foci at (- 4
, 0) and (4
, 0)
vertices at (-9, 0), (9, 0)
Mathematics
Graph the numbers on a number line.-8, -6, -4, -2
A. 
B. 
C. 
D. 
Mathematics
Find the largest open interval where the function is changing as requested.Increasing f(x) = 
x2 - 
x
A. (-?, -1) B. (1, ?) C. (-1, 1) D. (-?, ?)
Mathematics
Indicate what must be done to each side of the equation in order to isolate the variable.x + 9.4 = 26.8
A. Subtract 9.4 B. Subtract 26.8 C. Add 26.8 D. Add 9.4
Mathematics