Solve the system by using Gaussian elimination with backward substitution or by reducing the matrix to reduced-row echelon form. 6x + 7y = 24-2x - 5y = -8
A. (3, 1)
B. No solution
C. (4, 1)
D. (4, 0)
Answer: D
Mathematics
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Determine whether the activity can be used to illustrate the given property.Making a pot of coffee, brushing your teeth, and taking a shower.Does the associative property hold?
A. Yes B. No
Mathematics
The charts give the average for two stock markets for a recent week.
On which day(s) did Market A exceed 4500 and Market B exceed 1000?
A. Monday, Tuesday, and Friday B. Everyday C. Tuesday, Wednesday, and Thursday D. Tuesday
Mathematics
Find the reciprocal.13
A. 
B. 13
C. 
D. 1
Mathematics
Solve the equation by completing the square.x2 - 4x - 7 = 0
A. {-2 - 
, -2 + 
}
B. {2 - 
, 2 + 
}
C. {4 - 
, 4 + 
}
D. {2 - 
, 2 + 
}
Mathematics