Perform the indicated operations and simplify the result. Leave the answer in factored form.
A. 
B. 
C. 
D. 
Answer: C
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Evaluate the derivative.f(x) = sinh-1 
A. 
B. 
C. 
D. 
Answer the question.The central angle of a regular polygon is an angle with vertex at the center of the polygon.Number of sides:4568Central angle:90°72°60°45°What is the measure of the central angle of a regular polygon with 9 sides?
A. 40° B. 38° C. 48° D. 42°
Solve.The function A = A0e-0.0077x models the amount in pounds of a particular radioactive material stored in a concrete vault, where x is the number of years since the material was put into the vault. If 900 pounds of the material are placed in the vault, how much time will need to pass for only 525 pounds to remain?
A. 75 yr B. 140 yr C. 70 yr D. 80 yr
Multiply.(x + 11)(x - 11)
A. x2 - 121 B. x2 + 22x - 121 C. x2 - 22 D. x2 - 22x - 121