Perform the indicated operation. Simplify if possible.
+ 
A. x - 2
B. 
C. x - 5
D. x + 2
Answer: A
Mathematics
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Factor completely using the grouping method to factor trinomials. If unfactorable, indicate that the polynomial is prime.12z2 + 7z - 12
A. (3z - 4)(4z + 3) B. (12z + 4)(z - 3) C. prime D. (3z + 4)(4z - 3)
Mathematics
Place the correct inequality symbol, < or >, to compare each pair of numbers.522 
507
A. < B. >
Mathematics
The nurse has 2.4 liter(s) of a solution that is 23.5% alcohol. How many liters of pure alcohol must she add to bring the solution up to a 74.5% concentration? ?
A. 4.6 liters B. 4.8 liters C. 5.2 liters D. 4.91 liters E. 5.6 liters
Mathematics
Divide.
A. 16x2 + 4x + 1 B. 16x2 - 4x + 1 C. 16x2 + 1 D. 16x2 + 4x - 1
Mathematics