Find x.
= 12
A. 12
B. 18
C. 4
D. -2
Answer: B
Mathematics
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Solve the system by the addition method. Be sure to check all proposed solutions.4x = 13y + 6-2x + 6y = 2
A. {(-31, -10)}
B. {(7, 10)}
C. {(10, 
)}
D. {(-10, - 3)}
Mathematics
Solve the problem.The logistic growth model 
represents the population of a bacterium in a culture tube after t hours. When will the amount of bacteria be 610?
A. 10.21 hr B. 4.43 hr C. 1.62 hr D. 7.4 hr
Mathematics
Evaluate the series, if it converges.
A. 153 B. 119 C. Does not converge. D. - 119
Mathematics
Use the given vectors to find the indicated expression.v = -3i + 2j + k, w = -4i + 3j - kFind (-3v) × w.
A. 15i + 21j + 3k B. -15i + 27j - 3k C. 7i + 9j - 33k D. 3i + 5j + 35k
Mathematics