Solve the inequality. Graph the solution set and write it in interval notation.-3x ? -9 or 3x > 9x - 6 
A. (-?, 1] ? (3, ?)
B. ?
C. (-?, 1) ? [3, ?)
D. (1, 3]
Answer: C
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The lengths of the sides of a triangle are given. Determine if the triangle is a right triangle. If it is, identify the hypotenuse.8, 16, 20
A. right triangle; 20 B. right triangle; 16 C. right triangle; 8 D. not a right triangle
Find the solution or solutions, if any exist, to the system.
A. infinitely many solutions of the form x = -7 - 
z, y = 
z, z = z
B. infinitely many solutions of the form x = 7 - 
z, y = 2z, z = z
C. infinitely many solutions of the form x = -7 - 
z, y = 2z, z = z
D. infinitely many solutions of the form x = 7 - 
z, y = 
z, z = z
Find the LCD for the given fractions.
, 
, and 
A. 30 B. 12 C. 60 D. 20
Approximate the coordinates of each turning point by graphing f(x) in the standard viewing rectangle. Round to the nearest hundredth, if necessary.f(x) = -x3 + 
x2 + 6x - 3
A. (-2, -1) and (-1, -6.5) B. (-1, -6.5) and (2, 7) C. (-2, -1) and (1, 3.5) D. (-1, -6.5) and (1, 3.5)