Fill in the blank with one of the words or phrases listed below. 
When two lines intersect, four angles are formed. Two of these angles that share a common side are called 
angles.
A. vertical
B. complementary
C. adjacent
D. supplementary
Answer: C
Mathematics
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Find the expected value of the random variable in the experiment.A bag contains six marbles, of which four are red and two are blue. Suppose two marbles are chosen at random and X represents the number of red marbles in the sample.
A. 1.33 B. 1 C. 1.4 D. .933
Mathematics
Find the slope and the y-intercept of the line.x + 4y = -4
A. m = 
; b = -16
B. m = -4; b = 0
C. m = 4; b = -16
D. m = - 
; b = - 1
Mathematics
Find the slope and y-intercept of the line.12x + y = 5
A. slope = 12; y-intercept = 5
B. slope = - 
; y-intercept = 
C. slope = 
; y-intercept = 
D. slope = -12; y-intercept = 5
Mathematics
Factor the difference of two squares.x2 - 4
A. (x + 2)(x - 2) B. (x2 + 2)(x2 - 2) C. (x - 2)(x - 2) D. (x + 4)(x - 4)
Mathematics