Solve the equation by factoring.(x - 3)(x + 9) = 0
A. {3, -3, 9, -9}
B. {3, 9}
C. {3, -9}
D. {-3, 9}
Answer: C
Mathematics
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A. 
ln 
B. 
ln 
C. 
ln 
D. 
ln 
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Determine the period of the function.y = tan 4t
A. ?
B. 
C. 
D. 
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Simplify by writing the expression with positive exponents. Assume that all variables represent nonzero real numbers.
A. 
B. t8
C. t
D. t7
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Solve the system of equations by graphing.
?
?
?Please enter your answer as two ordered pairs in the form 
, 
. The pairs must be separated by a comma.
What will be an ideal response?
Mathematics