Solve the equation.3(6 + 3x) = 
A. {3}
B. 
C. {9}
D. {-3}
Answer: D
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Find the total surface area of the given space figure.
a = 19.1 cm, b = 11.9 cm, c = 18.5 cm.
A. 1381 cm2 B. 1602 cm2 C. 801 cm2 D. 1349 cm2
A point lying on the terminal side of angle ? is given. Find the exact value of the indicated trigonometric function of ?.(12, 16) Find sin ?.
A. 
B. 
C. 
D. 
Use the following figure. Lines m and n are parallel. State whether the given pair of angles is congruent or supplementary and explain why.
?2 and ?6
A. congruent; They are vertical angles. B. supplementary; They form a straight angle. C. supplementary; They are consecutive interior angles. D. congruent; They are corresponding angles.
Solve the inequality. Express your answer using interval notation. Graph the solution set.|x| < -2
A. (-?, -2) ? (2, ?)
B. (-2, 2)
C. (-?, -2]
D. ?