Solve.A satellite is to be put into an elliptical orbit around a moon. The moon is a sphere with radius of 572 km. Determine an equation for the ellipse if the distance of the satellite from the surface of the moon varies from 649 km to 289 km.
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Answer: C
Mathematics
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Find the slope and the y-intercept from the equation of the line. Sketch a graph of the equation.y = 3x - 5
A. m = 3, y-intercept = - 5
B. m = 5, y-intercept = 3
C. m = 5, y-intercept = 3
D. m = 3, y-intercept = 5
Mathematics
Add or subtract as indicated. Write the answer in simplest form.
- 
A. - 
B. -8
C. - 
D. - 
Mathematics
Factor the polynomial.25y2 - 92y + 81
A. (5y - 9)(5y + 9) B. (5y - 9)2 C. (5y + 9)2 D. Does not factor
Mathematics
If n and k are positive integers and 2^k ? n < 2^k+1, what is ?log2(n)?? Be sure to justify each step of your answer.
What will be an ideal response?
Mathematics