Solve the problem.Two distinct even numbers are selected at random from the first ten even numbers greater than zero. What is the probability that the sum is 30?
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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Factor completely.81a3 - 25a
A. a(81a + 1)(a - 25) B. a(9a + 5)(9a - 5) C. (9a2 + 5)(9a - 5) D. a(9a - 5)2
Mathematics
Graph the solution of the system of linear inequalities.
A. 
B. 
C. 
D. 
Mathematics
Plot the point given in polar coordinates.(2, 0°) 
A. 
B. 
C. 
D. 
Mathematics
Evaluate the discriminant, and predict the type and number of solutions.t2 - 14t + 49 = 0
A. 0, one rational B. -392, two different imaginary C. 392, two different rational D. 392, two different irrational
Mathematics