Given matrix A, find the indicated minor.Find M42.A = 
A. 17
B. -34
C. 0
D. 34
Answer: D
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Use the data set {d1, d2, d3, ..., d256} consisting of 256 numbers to answer the following question(s).After sorting the data set (in increasing order from left to right), the 11th percentile is
A. the average of the numbers in the 28th and 29th positions. B. the number in the 11th position. C. the number in the 29th position. D. the number in the 28th position. E. none of these
Solve the system of equations.3x + 5y + z = 404x - 4y - z = -75x + y + 4z = 37
A. (5, 4, 3) B. (4, 5, 3) C. (3, 5, 4) D. (4, 3, 5)
Solve the problem using your calculator.A study was conducted to compare the average time spent in the lab each week versus course grade for computer students. The results are recorded in the table below. Use linear regression to find a linear function that predicts a student's course grade as a function of the number of hours spent in lab. Number of hours spent in lab Grade (percent) 10 96 11 51 16 62 9 58 7 89 15 81 16 46 10 51
A. y = 88.6 - 1.86x B. y = 1.86 + 88.6x C. y = 44.3 + 0.930x D. y = 0.930 + 44.3x
Determine whether the system corresponding to the given augmented matrix is consistent or inconsistent. If it is consistent, give the solution.
A. consistent; x = 5, y = -1; (5, -1) B. consistent; x = -5, y = 1; (-5, 1) C. consistent; x = -5, y = 1, z = -6; (-5, 1, -6) D. inconsistent