Determine whether f is continuous at c.f(x) = 
;c = -8
A. continuous
B. not continuous
Answer: B
Mathematics
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Write the expression in simplest form. If a radical appears in the denominator, rationalize the denominator.
A. 
B. 
C. 
D. 
Mathematics
Graph the function.y = -3 cos 
+ 2
A. 
B. 
C. 
D. 
Mathematics
Find the vertices and foci of the ellipse. Graph the ellipse.
+ 
= 1
A. Foci at (0, - 2
) and (0, 2
)
Vertices at (0, -9), (0, 9)
B. Foci at (0, -9) and (0, 9)
Vertices at (0, -81), (0, 81)
C. Foci at (-9, 0) and (9, 0)
Vertices at (-81, 0), (81, 0)
D. Foci at (- 2
, 0) and (2
, 0)
Vertices at (-9, 0), (9, 0)
Mathematics
Write as a proportion.7 is to 4 as 70 is to 40
A. 
= 
B. 
= 
C. 
= 
D. 
= 
Mathematics