Determine whether the system corresponding to the given augmented matrix is dependent or inconsistent. If it is dependent, give the solution.
A. dependent; (8, -4)
B. dependent; (-8, 4)
C. inconsistent
D. dependent; (-8, 4, -9)
Answer: C
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The magnitude of earthquake 1 is 5.5. If earthquake 2 is 1,000 times as intense as earthquake 1, then the magnitude of earthquake 2 is (rounded to one decimal place if necessary) ?
A. 8.5 B. 2.5 C. 1,005.5 D. 5,500
Solve the problem.A summer camp wants to hire counselors and aides to fill its staffing needs at minimum cost. The average monthly salary of a counselor is $2400 and the average monthly salary of an aide is $1100. The camp can accommodate up to 45 staff members and needs at least 30 to run properly. They must have at least 10 aides, and may have up to 3 aides for every 2 counselors. How many counselors and how many aides should the camp hire to minimize cost?
A. 12 counselors and 18 aides B. 35 counselors and 10 aides C. 27 counselors and 18 aides D. 18 counselors and 12 aides
Solve and graph.|5k + 5| - 9 < -5
A. 
, or 
B. 
, or 
C. 
, or 
? 
D. 
, or 
Solve using the addition principle and/or the multiplication principle.
k = 
A. 10 B. 3 C. 9 D. 4