Solve the problem.Halley's comet has an elliptical orbit with the sun at one focus. Its orbit shown below is given approximately by 
In the formula, r is measured in astronomical units. (One astronomical unit is the average distance from Earth to the sun, approximately 93 million miles.) 
Find the distance from Halley's comet to the sun at its greatest distance from the sun. Round to the nearest hundredth of an astronomical unit and the nearest million miles.
A. 5.57 astronomical units; 518 million miles
B. 11.36 astronomical units; 1057 million miles
C. 295.68 astronomical units; 27,498 million miles
D. 5.68 astronomical units; 528 million miles
Answer: C
Mathematics
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A. 
B. 
C. 
D. 
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Use the square root property to solve the quadratic equation.(2x + 4)2 = 36
A. 1, 5 B. 0, 1 C. 1, -5 D. 20, -20
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Graph the quadratic function. Determine the vertex and axis of symmetry.f(x) = (x + 6)2 - 3
A. vertex: (-3, -6)
axis of symmetry: x = -3
B. vertex: (-6, -3)
axis of symmetry: x = -6
C. vertex: (6, -3)
axis of symmetry: x = 6
D. vertex: (3, 6 )
axis of symmetry: x = 3
Mathematics
Convert.466 mm = _____ cm
A. 4.7 B. 4660 C. 46.6 D. 46,600
Mathematics