Perform the indicated operations.(6n5 + 19n2 + 20) - (-4n2 + 9n5 + 4)
A. -3n5 + 23n2 + 24
B. -3n5 + 28n2 + 24
C. -3n5 + 23n2 + 16
D. 36n7
Answer: C
Mathematics
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Solve the system of equations using Gaussian elimination or Gauss-Jordan elimination. x - y + 2z = -124x + z = -4 x + 4y + z = 12
A. (-4, 0, 4) B. (0, 4, -4) C. (-4, 4, 0) D. No solution
Mathematics
Change the percent to a fraction or mixed number. Simplify if necessary.380%
A. 7
B. 1
C. 3
D. 38
Mathematics
Use technology to compute r, the correlation coefficient.Consider the data points with the following coordinates: 
A. -.0537 B. .1085 C. -.0783 D. .2145
Mathematics
Divide.
A. 362 B. 377 R 6 C. 382 R 14 D. 372
Mathematics