Solve the system by using the inverse of the coefficient matrix. 9x - 5y - z = 39 x + 7y + 2z = 56 3x + y + z = 33
A. {(-8, 6, 16)}
B. ?
C. {(8, 6, 3)}
D. {(8, 3, 6)}
Answer: C
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Calculate the slope of the line passing through the given points. If the slope is undefined, so state. Then indicate whether the line rises, falls, is horizontal, or is vertical.(7, 1), (-7, -6)
A. - 6, falls
B. 
, rises
C. - 
, falls
D. 2, rises
Solve. Use ? ? 3.14. Round to the nearest tenth unless otherwise directed.A conical pile of grain is 18 feet in diameter and 16 feet high. How many bushels of grain are in the pile if 
A. 1085.2 bushels B. 120.6 bushels C. 345.6 bushels D. 1356.5 bushels
Provide an appropriate response.Which one of the following is a description of the graph of the inequality?(x + 6)2 + (y - 3)2 < 81
A. The region inside a circle with center (-6, 3) and radius 9 B. The region outside a circle with center (6, -3) and radius 9 C. The region outside a circle with center (-6, 3) and radius 9 D. The region inside the circle with center (6, -3) and radius 9
Find the difference.- 
- 
A. - 
B. - 1
C. - 
D. 