Solve the problem.Given that the polar equation r = a(1 - e2)/(1 + e cos ?) models the orbits of planets about the sun, estimate the closest possible approach of a planet for which  and  to a planet for which  and 

A. 36 astronomical units
B. 67 astronomical units
C. 0 astronomical units
D. 26 astronomical units


Answer: D

Mathematics

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Solve for the specified variable. Assume that all other variables are nonzero.(b - 11)y2 + 3y + 4z = 0; for y

A. y = 
B. y = 
C. y = 
D. y = 

Mathematics

Simplify the expression. Write your answer without negative exponents. Whenever an exponent is negative or zero, assume that the base is not zero.(-4x-4y-2)-2

A.
B.
C. - 
D. -4x8y4

Mathematics

Find the points on the graph of t which the tangent line is horizontal.

What will be an ideal response?

Mathematics

Solve the problem.For the given cost and revenue equations, find the break-even point(s) ,  

A. 850
B. 0
C. 0 and  170
D. 0 and 850

Mathematics