Multiple Choice
Use the determinant feature of a graphing calculator to solve the system by Cramer's rule . (Round to one decimal place.)
-2.1x - 2.8y - 5.0z = 2.2 4.9x - 3.2y - 1.8z = -4.2
2.1x - 1.2y - 4.6z = 11.1
A) {(2.1, 6.3, -3.1) }
B) {(4.3, 12.7, -6.2) }
C) {(8.6, 25.3, -12.3) }
D) {(10.7, 31.7, -15.4) }
Correct Answer:

Verified
Correct Answer:
Verified
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