Find: a. The center and radius of the circle. b. The x- and y-intercepts of the graph of the circle.x2 + y2 - 2x + 2y - 6 = 0
A. a. center = (1, -1); radius = 2
b. (1 + 
, 0), (1 - 
, 0), (0, -1 + 
), (0, -1 - 
)
B. a. center = (-1, -1); radius = 2
b. (1 + 
, 0), (0, -1 + 
)
C. a. center = (-1, 1); radius = 8
b. (1 + 
, 0), (0, -1 + 
)
D. a. center = (1, -1); radius = 2
b. (-1 + 
, 0), (-1 - 
, 0), (0, 1 + 
), (0, 1 - 
)
Answer: A
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A. 0.4 B. 400 C. 0.04 D. 4 E. none of the above
Find the greatest common factor of the numbers.480, 2700
A. 180 B. 60 C. 480 D. 30
Two planes take off at the same time from an airport. The first plane is flying at 246 miles per hour on a course of 130.0°. The second plane is flying in the direction 165.0° at 359 miles per hour. Assuming there are no wind currents blowing, how far apart are they after 2 hours? ? Apply the rules regarding the use of significant digits after all computations are complete. ?
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Use the product rule to simplify the expression.
A. 294x
B. 7
C. 6x2
D. 7