Find the area of the region.
12 cm
A. 144 sq cm
B. 48 sq cm
C. 288 sq cm
D. 139 sq cm
Answer: A
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Identify the type of surface represented by the given equation.
- 
- 
= 1
A. Hyperboloid of two sheets B. Hyperboloid of one sheet C. Elliptic cone D. Ellipsoid
Find the directrices of the hyperbola.x2 - y2 = 16
A. x = ± 
B. x = ± 
C. y = ± 4
D. y = ± 
For the given functions f and g, find the requested function and state its domain.f(x) = 4 - 8x; g(x) = -2x + 8Find f + g.
A. (f + g)(x) = -6x + 12; {x|x ? - 2} B. (f + g)(x) = -2x + 4; {x| x ? 2} C. (f + g)(x) = 2x; all real numbers D. (f + g)(x) = -10x + 12; all real numbers
Graph the ellipse. Label the intercepts.16x2 + 25y2 = 400
A. (-5, 0), (5, 0), (0, -4), (0, 4)
B. (-4, 0), (4, 0), (0, -5), (0, 5)
C. (-5, 0), (5, 0), (0, -4), (0, 4)
D. (-4, 0), (4, 0), (0, -5), (0, 5)