Evaluate the expression or indicate that the root is not a real number.
A. 20,736
B. 
C. 12
D. Not a real number
Answer: D
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Find the domain of the composite function (f ? g)(x). Write the domain in interval notation.f(x) = 
, g(x) = 
A. (-?, -3) ? (-3, -1) ? (-1, 0) ? (0, ?) B. (-?, -1) ? (-1, 0) ? (0, ?) C. (-?, ?) D. (-?, -3) ? (-3, 0) ? (0, ?)
Evaluate.5 × 18 - 21 ÷ 3 + 82
A. 147 B. 9 C. 59 D. 161
Solve the rational inequality. Express the solution in interval notation.
> 0
A. (1, ?) B. (-?, -7) ? (1, ?) C. (-7, 1) D. (-?, -7)
Solve.If the force acting on an object stays the same, then the acceleration of the object is inversely proportional to its mass. If a force acts on an object with a mass of 81 kilograms so that it accelerates at 
per second per second, then find the acceleration of an object with a mass of 
that is acted on by the same force.
A. 18 meters per second per second B. 27 meters per second per second C. 24 meters per second per second D. 9 meters per second per second