Write each inequality in interval notation and graph the interval on a number line.x < 2
A. (-?, 2)
B. [2, ?)
C. (-?, 2]
D. (2, ?)
Answer: A
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Find parametric equations for the line described below.The line through the point P(7, -4, 0) and perpendicular to the plane 
A. x = -4t - 7, y = -4t + 4, z = -7t B. x = -4t + 7, y = -4t + 7, z = 0 C. x = 4t - 7, y = 4t + 4, z = 7t D. x = 4t + 7, y = 4t - 4, z = 7t
Find the work done by F over the curve in the direction of increasing t.F = -8xi - 6x5y3j + (-7z + 9y2)k ; the path is 
where C1 is the straight line from 
to 
C2 is the straight line from (1, 0, 0) to (1, 1, 0), and C3 is the straight line from (1, 1, 0) to (1, 1, 1)
A. W = 0
B. W = - 4
C. W = - 
D. W = 1
Translate each graph to an inequality using the variable x.
A. x > -5.2 B. x ? -5.2 C. x ? -5.2 D. x < -5.2
Between each pair of numbers, insert the appropriate sign, <, =, or >, to make a true statement.0.889 0.330
A. 0.889 < 0.330 B. 0.889 > 0.330 C. 0.889 = 0.330