Determine if the pair of line segments or angles is congruent.Determine if the pair of angles is congruent. Use a protractor. 
A. Yes
B. No
Answer: A
Mathematics
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Find the magnitude of u × v and the unit vector parallel to u × v in the direction of u × v.u = 4i + 2j + 8k, v = -i - 2j - 2k
A. 6
; 
i - 
k
B. 180; 
i + 
j + 
k
C. 180; 
i + 
k
D. 6
; 
i + 
k
Mathematics
Graph on the number line, and express in interval notation.The set of all real numbers greater than 4.
A. (-?, 4]
B. [4, ?)
C. (-?, 4)
D. (4, ?)
Mathematics
Find the volume of the indicated region.The tetrahedron cut off from the first octant by the plane 
A. 28 B. 21 C. 42 D. 14
Mathematics
Write an equation for the parabola.
A. y2 = -8x B. y2 = 8x C. x2 = -8y D. x2 = 8y
Mathematics