Determine whether the matrices are inverses. 
, 
A. Yes
B. No
Answer: B
Mathematics
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Solve the problem.A force acts on a certain object in such a way that when the object has moved a distance of r (in m), the force f (in newtons) is given by 
Find the work (in joules) done through the first four meters.
A. 64 J B. 40 J C. 175.7 J D. 210.7 J
Mathematics
Solve the logarithmic equation. Give an exact answer.log5 8 - log5 x = 3
A. 
B. 
C. 
D. 
Mathematics
Solve. Then graph the solution.x2 - 6x ? -8
A. (-?, -4] ? [-2, ?)
B. (-4, -2)
C. [-4, -2]
D. [2, 4]
Mathematics
Write true or false for the statement.An isosceles triangle has two sides of equal length.
A. True B. False
Mathematics