Solve.Recall that 
is the formula for the area of a square. If the area of a square is represented by 
how can the length of each side be represented?
A. 2x - 6
B. (2x - 6)2
C. 2x + 6
D. (2x + 6)2
Answer: A
Mathematics
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Solve by the method of your choice.4x2 = 81
A. ± 
B. ± 
C. 
D. ± 
Mathematics
Decide whether the statement is true or false. If it is false, tell why.If k is a positive integer, then x2 = k will have one rational and one irrational solution.
A. True B. False; there will be either two rational solutions or two irrational solutions. C. False; there will always be two rational solutions.
Mathematics
Find the inverse of the function.f(x) = 
A. f-1(x) = 
B. f-1(x) = 
C. f-1(x) = 
D. f-1(x) = 
Mathematics
Solve the equation.28 = -21 + n
A. n = 7 B. n = -49 C. n = 49 D. n = -7
Mathematics