Solve the system of equations using matrices.4x - y - 2z = -16x + 7y + 7z = 74 -2x - 6y + z = -19
A. (-3, 3, 6)
B. (3, 5, 3)
C. (3, 3, 5)
D. (3, -3, 5)
Answer: C
Mathematics
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Use the change-of-base formula to find the logarithm. Round your answer to four decimal places. log3 83.47
A. 4.0273 B. 27.8233 C. 1.9215 D. 0.2483
Mathematics
Round following numbers as indicated.1.1143 (nearest tenth)
A. 1.2 B. 1.11 C. 1.0 D. 1.1
Mathematics
Solve the problem.The pharmacist mixed 6.36 grams of one drug with 4.469 grams of another drug. What was the weight of the mixture?
A. 10.829 g B. 11.929 g C. 8.938 g D. 12.72 g
Mathematics
Perform the conversion. Round to the nearest hundredth when necessary.86.5 yd to m
A. 94.29 m B. 283.72 m C. 79.06 m D. 26.38 m
Mathematics