Use Cramer's rule to solve the system. If D = 0, use another method to complete the solution. x - y + 2z = -65x + z = -4 x + 5y + z = -14
A. ?
B. {(-4, 0, -2)}
C. {(-4, -2, 0)}
D. {(0, -2, -4)}
Answer: D
Mathematics
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Find the centroid of the region bounded by the given curves.The region bounded by the parabola y = 9 - x2 and the x-axis
A. 
= 
, 
= 0
B. 
= 0, 
= 
C. 
= 0, 
= 
D. 
= 0, 
= 
Mathematics
Completely factor the expression.
?
?
A. 
B. 
C. 
D. 
E. 
Mathematics
Insert < or > to make the statement true.9.07 ___ -9.01
A.
| 9.07 > -9.01 |
B.
| 9.07 < -9.01 |
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Simplify the algebraic expression.4.8t + 4.1 - 1.4t
A. 6.2t + 4.1 B. -3.4t - 4.1 C. 3.4t + 4.1 D. -3.4t + 4.1
Mathematics