Solve by transforming the augmented matrix into row echelon form.
A. no solution
B. (5, -5)
C. (-5, 5)
D. (-5, -5)
Answer: C
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Determine whether the equation defines y as a function of x.5x = 10 - 3y
A. Yes B. No
Planets travel in elliptical orbits with the sun at one focus. Assume that the focus is at the pole, the major axis lies on the polar axis, and the length of the major axis is 2a (see figure). The polar equation of the orbit of a planet is given below, where e is the eccentricity. If 
miles and 
find the perihelion distance (the minimum distance from the sun to the planet). Round your answer to the nearest mile.
A) 86,596,392 miles
B) 91,219,608 miles
C) 8,659,639 miles
D) 9,121,961 miles
E) 865,963,920 miles
Factor.12x2 + 8x - 15x - 10
A. (12x + 5)(x - 2) B. (12x - 5)(x + 2) C. (4x + 5)(3x - 2) D. (4x - 5)(3x + 2)
Set the viewing rectangle of your graphing calculator to 
by 
to solve the problem.Graph the following set of parametric equations for 0 ? t ? 2? and identify the letter of the alphabet that the graph resembles.x1 = -4,y1 = -2 + 2.8t/?x2 = -4 + 1.96t/?,y2 = 0.8x3 = -0.08,y3 = -2 + 2.8t/?
A. I B. A C. H D. K