Solve.The orbit of a comet is an ellipse with eccentricity e = 0.9 with the sun at a focus. If its minimum distance from the sun is 0.36 AU and its maximum distance from the sun is 0.59 AU, what is the eccentricity of the orbit?
A. e = 0.242
B. e = 0.379
C. e = 0.218
D. e = 0.621
Answer: A
Mathematics
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A. w = -6x - 6y - 2z - 2 B. w = -6x - 5y - 2z + 4 C. w = -6x - 5y - 2z - 2 D. w = -6x - 5y + 2z - 2
Mathematics
Multiply.(967)(86)
A. 83,162 B. 83,152 C. 83,172 D. 83,262
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Express the sum using summation notation. Use a lower limit of summation not necessarily 1 and k for the index of summation.5 + 6 + 7 + 8 + . . . + 35
A. 
B. 
C. 
D. 
Mathematics
Find the focus and directrix of the parabola.x2 + 20y = 0
A. F: (-5, 0); D: y = 5 B. F: (0, -5); D: y = -5 C. F: (0, -5); D: y = 5 D. F: (0, -5); D: x = 5
Mathematics