Solve the problem.A satellite is to be put into an elliptical orbit around a moon. The moon is a sphere with radius of 578 km. Determine an equation for the ellipse if the distance of the satellite from the surface of the moon varies from 490 km to 261 km.
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Answer: C
Mathematics
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Perform the operation and give the answer in Hindu-Arabic form. src="https://sciemce.com/media/4/ppg__ttt0612191108__f1q177g6.jpg" alt="" style="vertical-align: 0.0px;" height="10" width="13" />
+ 
A. 52
B. 602
C. 62
D. 502
Mathematics
Shade the region in the xy-plane that satisfies the system of inequalities.
+ 
? 1-x + y ? 3 
A. 
B. 
C. 
D. 
Mathematics
Use the power rules for exponents to simplify. Write the answer in exponential form.
4
A. 5t4 B. 54t C. 20t4 D. 54t4
Mathematics
Graph the rational function.f(x) = 
A. 
B. 
C. 
D. 
Mathematics