Find the determinant of the matrix  figure 1.png)
, if it exists
 figure 2.png)
 answer.png)
Mathematics
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Provide an appropriate response.Find the slope of the graph f(x) = 7 cos x at x = 
.
A. - 
B. 
C. 
D. - 
Mathematics
Solve.The enrollment at a local college decreased by 10% over last year's enrollment of 600. Find the decrease in enrollment.
A. 600 students B. 660 students C. 60 students D. 540 students
Mathematics
Factor completely.5x2 + 19x - 4
A. (5x - 4)(x + 1) B. (5x + 1)(x - 4) C. (5x + 4)(x - 1) D. (5x - 1)(x + 4)
Mathematics
Find the LCM of the set of numbers.30, 80, 70
A. 1680 B. 240 C. 840 D. 560
Mathematics