Sketch the graph of the equation. If the graph is a parabola, find its vertex. If the graph is a circle, find its center and radius.x2 + y2 + 6x + 6y + 2 = 0
A. center (3, 3); radius = 4
B. center (-3, -3); radius = 4
C. center (-3, 3); radius = 4
D. center (3, -3); radius = 4
Answer: B
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Solve the problem. Round your result to an appropriate number of significant digits.Joe has a pennant for the University of Michigan. It is in the shape of an isosceles triangle. If each equal side is 76.9 cm and the third side is 25.1 cm, what is the area of the pennant?
A. 912 cm2 B. 952 cm2 C. 179 cm2 D. 965 cm2
Find the area of the geometric figure.Parallelogram
A. 360 sq mi B. 39 sq mi C. 108 sq mi D. 36 sq mi
Evaluate the double integral
?
?
for the given function f(x, y) and the region R.
?
; R is the rectangle defined by 
and 
.
?
A. -10
B. 10e
C. 9
D. -9e
Solve the problem.The price p and the quantity x sold of a certain product obey the demand equation: 
What is the revenue to the nearest dollar when 400 units are sold?
A. $152,000 B. $88,000 C. $170,000 D. $10,000