Solve the linear system by using an inverse matrix.
A. {(1, 5, 9)}
B. {(1, 9, 5)}
C. {(-1, 9, 2)}
D. ?
Answer: B
You might also like to view...
Solve the problem. Use 3.14 for ?, if necessary.Find the perimeter. Approximate the result to the nearest tenth.
A. 172.5 m B. 108.3 m C. 136.5 m D. 96.5 m
Solve the quadratic inequality by any method. Write your answer in interval notation.x2 - 3x - 10 < 0
A. (5, ?) B. (-?, -5) C. (-2, 5) D. (-?, -2)
Find the area of the rectangle.
A. 4232 sq ft B. 92 sq ft C. 184 sq ft D. 2116 sq ft
The owner of a candy store mixed some peanuts worth $2 per pound, some cashews worth $8 per pound, and some Brazil nuts worth $8 per pound to get 60 pounds of a mixture that would sell for $5 per pound. She used 20 fewer pounds of cashews than peanuts. How many pounds of each did she use?
A. 20 lb peanuts, 10 lb cashews, 30 lb Brazil nuts B. 5 lb peanuts, 15 lb cashews, 25 lb Brazil nuts C. 30 lb peanuts, 10 lb cashews, 20 lb Brazil nuts D. 25 lb peanuts, 5 lb cashews, 15 lb Brazil nuts E. 10 lb peanuts, 30 lb cashews, 20 lb Brazil nuts