Decide whether the matrices are inverses of each other. (Check to see if their product is the identity matrix I.)
and 
A. Yes
B. No
Answer: B
Mathematics
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Solve the problem.Find the centroid of the infinite region in the first quadrant bounded by the coordinate axes and the curve 
.
A. 
= 
, 
= 
B. 
= 
, 
= 
C. 
= 
, 
= 
D. 
= 
, 
= 
Mathematics
Determine whether the indicated ordered pair lies on the graph of the given equation.y = |x|, (-3, 3)
A. Yes B. No
Mathematics
Solve the problem.Find which is the better buy (lower cost per ounce) by finding each unit price rounded to three decimal places if necessary.Soy Sauce: $4.41 for 18 ounces$2.94 for 12 ounces
A. $4.41 for 18 ounces B. $2.94 for 12 ounces C. Both cost the same per ounce.
Mathematics
Simplify.
A. 
B. - 
C. 
D. 
Mathematics