Find all specified roots.Seventh roots of 1.
A. 1, cis 
, cis 
, cis 
, cis 
, cis 
, cis 
B. -1, cis 
, cis 
, cis 
, cis 
, cis 
, cis 
C. 1, cis 
, cis 
, cis 
, cis 
, cis 
, cis 
D. 1, cis 
, cis 
, cis 
, cis 
, cis 
, cis 
, -1
Answer: C
Mathematics
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Let P = 
, X = 
, and T = 
, where all the elements are real numbers. Use these matrices to determine whether the statement is true or false for 2 × 2 matrices.k(X + T) = kX + kT, for any real number k.
A. True B. False
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State whether the function is linear or quadratic.f(x) = 9x2 - 18x
A. Linear B. Quadratic
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Perform the indicated operations.
A. 0.27 B. 2.7 C. 27 D. 3.7
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