Solve the problem.A bag contains 8 red marbles, 2 blue marbles, and 1 green marble. What is the probability of choosing a marble that is red or green when one marble is drawn from the bag?
A. 
B. 9
C. 
D. 
Answer: A
Mathematics
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Verify the identity.
= 
What will be an ideal response?
Mathematics
Decide whether the figure is convex or concave.
A. Convex B. Concave
Mathematics
Find the sum of all real solutions of the equation.
?
?
?
A. 0 B. 105 C. 16 D. -16 E. 8
Mathematics
Find the distance d(A, B) between the points A and B.A(0, 6); B(-9, 6)
A. 81
B. 9
C. 6
D. 3
Mathematics