Reduce the rational expression to lowest terms.
A. 
B. x + 6
C. x - 6
D. 
Answer: B
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Solve the problem.In the formula A = Iekt, A is the amount of radioactive material remaining from an initial amount I at a given time t and k is a negative constant determined by the nature of the material. A certain radioactive isotope has a half-life of approximately 1200 years. How many years would be required for a given amount of this isotope to decay to 70% of that amount?
A. 360 yr B. 2084 yr C. 547 yr D. 617 yr
Solve. Check for extraneous solutions.
+ 5 = x
A. {9} B. {9, 18} C. {2} D. {2, 9}
If a = 2.5 is a leg of a right triangle and c = 7.42 is the hypotenuse of a right triangle find the length of the missing leg to the nearest tenth.
What will be an ideal response?
The graph of the function y = f(x) is given. On the same axes, sketch the graph of f-1(x). Use a dashed line for the inverse function.
A. 
B. 
C. 
D. 