Solve the problem.The orbit of a planet around a sun is an ellipse with the sun at one focus. The aphelion of a planet is its greatest distance from the sun, its perihelion is its shortest distance, and its mean distance is the length of the semimajor axis of the elliptical orbit. If a planet has a perihelion of 406.5 million miles and a mean distance of 408 million miles, write an equation for the orbit of the planet around the sun.
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Answer: B
Mathematics
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Express the trigonometric function in terms of the same function of a positive acute angle.sec 340°
A. -sec 65° B. sec 65° C. -sec 20° D. sec 20°
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Solve the proportion.
= 
A. 
B. 
C. 
D. 
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Simplify.3[-7 + 6(-5 + 7)]
A. -6 B. -9 C. -10 D. 15
Mathematics
Approximate the area of the circle using 3.14 as an approximation for ?.
A. 157 sq ft B. 19.625 sq ft C. 31.4 sq ft D. 78.5 sq ft
Mathematics