Determine whether matrix B is the inverse of matrix A by finding the product AB.A = 
, B = 
A. B ? A-1
B. B = A-1
Answer: A
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Clear fractions then solve by substitution.3x - 
= 10
- 
= 
A. 
B. 
C. 
D. 
Solve the problem. Round rates to the nearest whole percent and dollar amounts to the nearest cent.The Galerie d'Art paid $136.5 for a limited edition Graux print. The original selling price was $204.75, but this was marked down 60% to make room for incoming pieces. If operating expenses are 28% of cost, find the operating loss and the absolute loss.
A. operating loss: $92.82 absolute loss: $122.85 B. operating loss: $92.82 absolute loss: $54.60 C. operating loss: $54.60 absolute loss: $92.82 D. operating loss: $122.85 absolute loss: $54.60
Evaluate.(-14)4
A. -38,416 B. 38,416 C. -2744 D. 2744
Solve the problem.A forest ranger at Lookout A sights a fire directly north of her position. Another ranger at Lookout B, exactly 2 kilometers directly west of A, sights the same fire at a bearing of N41.2°E. How far is the fire from Lookout A? Round your answer to the nearest 0.01 km.
A. 2.32 km B. 2.25 km C. 2.18 km D. 2.28 km