Simplify. 
-2
A. y6
B. 
C. 
D. 
Answer: D
Mathematics
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Evaluate the expression.(-16)(-9)
A. 144 B. 7 C. -7 D. -144
Mathematics
Solve the number problem by finding the value of the unknown number.When 33 is decreased by twice a number, the result is 25.
A. 3 B. 5 C. 4 D. 6
Mathematics
Determine the domain of the function.f(x) = 
A. {x|x ? 17, x ? 1, and x ? 
}
B. {x|x ? 17, x ? 1, and x ? 0}
C. {x|x ? -17, x ? 1, and x ? 0}
D. {x|x ? 17, x ? 1, x ? 
, and x ? 0}
Mathematics
Solve the equation. If the solutions involve square roots, give both the exact solutions and the approximate solutions to three decimal places.
+ 
= 
A. 8
B. -8
C. 
? 1.204
D. -4
Mathematics