Find the inverse of the matrix (if it exists).
a. 
b. 
c. 
d. 
b.
Mathematics
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Use a tree diagram showing all possible results when a die is rolled twice. List the ways of getting the following result.The sum of the numbers showing is 8.
A. (2,6),(3,5),(4,4),(5,3),(6,2) B. (2,6),(3,5),(4,4) C. (4,4) D. (2,6),(3,5),(5,3),(6,2)
Mathematics
Sketch the curve of the vector function r(t)=3ti +(2t+ 3)j, -1?t?2, and indicate the orientation of the curve.
What will be an ideal response?
Mathematics
Find the surface area of the rectangular solid or cube.
A. 150 ft2 B. 200 ft2 C. 75 ft2 D. 125 ft2
Mathematics
Find u ? v.u = 
, v = 
A. -102 B. 78 C. -42 D. -74
Mathematics