Complete the square and write the equation in standard form. Then give the center and radius of the circle and graph the equation.x2 + y2 + 4x + 3 = 0
A. x2 + (y + 2)2 = 1
center (0, - 2), r = 1
B. x2 + (y - 2)2 = 1
center (0, 2), r = 1
C. (x + 2)2 + y2 = 1
center (- 2, 0), r = 1
D. (x - 2)2 + y2 = 1
center (2, 0), r = 1
Answer: C
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Solve the problem.Set up the triple integral for the volume of the sphere 
in spherical coordinates.
A. 
B. 
C. 
D. 
Find the standard-form equation of the hyperbola centered at the origin which satisfies the given conditions. Foci at (
, 0), (-
, 0); asymptotes y = 5x, y = -5x
A. x2 - 
= 1
B. 
- y2 = 1
C. 
- x2 = 1
D. y2 - 
= 1
Use transformations to graph the function.y = sin x + 1
A. 
B. 
C. 
D. 
Solve the problem.Suppose that for an electrical appliance, voltage is given by 
and amperage by 
where t is time in seconds. The wattage is given by 
Find the maximum wattage used by the appliance.
A. 404.46 B. 101.115 C. 189 D. 202.23