Solve the system by using the inverse of the coefficient matrix. x + y + z = 4 x - y + 4z = -195x + y + z = 24
A. No solution
B. (-5, 4, 5)
C. (-5, 5, 4)
D. (5, 4, -5)
Answer: D
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Convert between English and Metric System of Units.
2.5 m = 
in. (Round to the nearest tenth.)
A. 98.4 B. 6.4 C. 2.7 D. 90.0
State if the vectors a and b are perpendicular, parallel, or neither. If a and b are parallel, state whether they point in the same direction or in opposite directions.a = 
, b = 
A. Parallel, opposite directions B. Parallel, same direction C. Perpendicular D. Neither
Solve. Write the answer as a mixed number in simplest form.A recipe for fudge brownies calls for 3
cups of cocoa per batch. If you are making 2
batches, how many cups of cocoa are needed?
A. 4
cups
B. 6
cups
C. 2
cups
D. 9
cups
Provide an appropriate response.When using the intersection-of-graphs method of graphical solution, explain the significance of the 
at the bottom of the graphing calculator display.
What will be an ideal response?