Evaluate the determinant of the matrix. Expand by minors along the row or column that appears to make the computation easiest.
A. 
B. 
C. 
D. 
E. 
Answer: A
Mathematics
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Solve.The aerial view of a roof is shown in the figure. (a) How many squares (100 sq ft) of shingles are needed for the roof? (b) How many feet of gutters are needed?
A. (a) 3 squares, (b) 70 ft B. (a) 3 squares, (b) 75 ft C. (a) 4 squares, (b) 75 ft D. (a) 4 squares, (b) 70 ft
Mathematics
Convert.53.4 hectometers = _____ decimeters
A. 53,400 B. 5.34 C. 5340 D. 534
Mathematics
Give the domain, range, or period, as requested.Domain of y = sec x
A. x ? ?n
B. x = ?n
C. x ? 
+ ?n
D. -? < x < ?
Mathematics
Given  figure 1.png)
, find (AB)?(CD), or explain why the operation cannot be performed.
What will be an ideal response?
Mathematics