Find the probability of the event.A bag contains 2 red marbles, 5 blue marbles, and 8 green marbles. A marble is randomly selected from the bag. What is the probability that it is blue?
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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Find the moment or center of mass of the wire, as indicated.Find the center of mass of a wire that lies along the first-quadrant portion of the circle 
if the density of the wire is 
A. 
= 
, 
= 
B. 
= 1, 
= 1
C. 
= 
, 
= 
D. 
= 
, 
= 
Mathematics
Find the acute angle between the lines.y = 
x + 6 and y = - 
x - 3
A. 30° B. 60° C. 75° D. 45°
Mathematics
Provide an appropriate response.Evaluate the following: 4(4 - 7) + 21 ÷ 7
Fill in the blank(s) with the appropriate word(s).
Mathematics
Match the given equation with one of the graphs.x2 = 3y
A. 
B. 
C. 
D. 
Mathematics