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 330.6 million miles and a mean distance of 333 million miles, write an equation for the orbit of the planet around the sun.
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Answer: D
Mathematics
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Evaluate the algebraic expression for the given value or values of the variable(s).-4x - 6;
x = -3
A. 18 B. 6 C. -18 D. -6
Mathematics
Solve the system using matrices.x + y + z = 4x - y + 2z = 32x + 2y + 2z = 0
A. (5, 3, -4) B. (5, -4, 3) C. dependent system D. inconsistent system
Mathematics
Write the fraction in lowest terms.
A. 
B. 
C. 
D. 
Mathematics
Simplify the expression. Assume all variables represent positive real numbers.
A. 2
B. 3
C. 4
D. 2
Mathematics