Factor completely. If the polynomial cannot be factored, say it is prime.(x - 6)2 - 9
A. (x + 3)(x + 9)
B. (x - 3)(x - 9)
C. (x + 3)(x - 15)
D. (x - 9)2
Answer: B
Mathematics
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Simplify.
A. 
B. 
C. 8 - a2
D. 8
Mathematics
Solve the problem.If the legs of a right triangle have lengths 9 and 4, what is the length of the hypotenuse, that is, the longest side? Round your answer to the nearest tenth.
A. 8.1 B. 3.6 C. 9.8 D. 97.0
Mathematics
Solve the inequality. Express your answer using interval notation.(3x + 5)-1 < 0
A. 
B. 
C. 
D. 
Mathematics
Determine whether the matrix is in row-echelon form. If it is, then determine also whether it is in reduced row-echelon form.
A. Yes; yes B. Yes; no C. No
Mathematics