Find the solution to the system by addition (elimination) method. 6x + 7y = -15-6x - 12y = 30
A. (-6, - 3)
B. (6, 3)
C. (-1, 3)
D. (1, -3)
Answer: D
Mathematics
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Solve.49t3 + 20t = 84t2
A. 
, 
B. 
, 
C. 0, 
, 
D. 0, - 
, - 
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Factor the expression.
A. 
B. 
C. 
D. 
E. prime
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Find A-1, if it exists.A = 
A. 
B. 
C. 
D. 
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Prepare a probability distribution for the experiment. Let x represent the random variable, and let P represent the probability.Three balls are drawn from a bag containing 5 red and 3 green balls. The number of green balls is counted.
A. 
B. 
C. 
D. 
Mathematics