Solve the linear system using an inverse matrix. x + 2y + 3z = -1 x + y + z = -3-x + y + 2z = 11
A. (7, 4, 0)
B. (-9, 10, -4)
C. (30, -47, -16)
D. (-1, -12, -22)
Answer: B
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A. y = 2x2 - 3x + 3 B. y = 2x2 - 3x + 4 C. y = x2 - 5x + 3 D. y = 2x2 - 5x + 4
Find the prime factorization. Write the answer in exponential form.93
A. 3 ? 29 B. 32 C. 3 ? 31 D. 32 ? 31
Solve the problem.A repair company's charge for repairing a certain type of copy machine fits the model 
where y is the number of dollars charged and x is the number of minutes the repair person is on the job. How many minutes would it take for the cost of repair to reach $110? (Round to the nearest minute.)
A. 101 min B. 171 min C. 10 min D. 255 min
Use the information given about the angle ?, 0 ? ? ? 2?, to find the exact value of the indicated trigonometric function.sin ? = 
, 0 < ? < 
Find cos(2?).
A. 
B. 
C. - 
D. 