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 shortest distance from the sun. Round to the nearest hundredth of an astronomical unit and the nearest million miles.
A. 6.41 astronomical units; 597 million miles
B. 12.83 astronomical units; 1193 million miles
C. 66.36 astronomical units; 6171 million miles
D. 5.85 astronomical units; 544 million miles
Answer: D
Mathematics
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Solve using the substitution method.x + y = 6y = 4x - 4
A. (4, 2) B. (1, 6) C. (2, 4) D. (3, 5)
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Evaluate -x for the given value of x.x = 32.4
A. 
B. -32.4
C. 32.4
D. 32
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Solve the compound inequality. Express the solution using interval notation. Graph the solution set.0 ? 
< 3
A. 
B. 
C. 
D. 
Mathematics
True or False:
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Referencing the sketch below, an interval where the function increases is (5, 15).
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Answer the following statement true (T) or false (F)
Mathematics