Provide an appropriate response.Consider the matrixA = 
Without using a calculator, determine whether A-1 exists. Explain your reasoning.
What will be an ideal response?
Expanding by the third column,
det A = 2 
+ 0 + 0 = -46 ? 0.
Since det A ? 0, A-1 exists.
Mathematics
You might also like to view...
Multiply or divide.
A. - 
B. - 
C. 
D. 
Mathematics
Solve the linear equation.
+ 
= 
A. {1}
B. {18}
C. 
D. {0}
Mathematics
Solve the problem.Suppose c(x) = x3 - 22x2 + 20,000x is the cost of manufacturing x items. Find a production level that will minimize the average cost per item of making x items.
A. 10 items B. 12 items C. 11 items D. 13 items
Mathematics
Find the area.
A. 315 m2 B. 157.5 m2 C. 1350 m2 D. 291 m2
Mathematics