Use the matrix capabilities of a graphing utility to find the determinant of the matrix
.
A. -12
B. -10
C. 7
D. -6
E. 4
Answer: C
Mathematics
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Find the magnitude and direction angle (to the nearest tenth) for each vector. Give the measure of the direction angle as an angle in [0,360°].
A. 16
; 60°
B. 16; 30°
C. 32; 30°
D. 16; 150°
Mathematics
Find the vertex and axis of symmetry of the graph of the function.f(x) = x2 + 15x - 6
A. (-13, -6) ; x = -13
B. (15, 444) ; x = 15
C. 
; x = 
D. 
; x = - 
Mathematics
The graph of 
is given in the figure. State whether 
or 
A. a > 0 B. a < 0
Mathematics
Simplify the radical expression. Assume all variables represent positive real numbers.
A. -7 B. 19 C. 49 D. ±7
Mathematics