Provide an appropriate response.Suppose that you are solving a system of three linear equations and three variables by the Gaussian elimination method and you obtain the augmented matrix. 
What row operation would you perform next?
A. Add row 1 to row 2.
B. Multiply row 1 by 
.
C. Add 14 times row 1 to 6 times row 3 to obtain a zero in the third row, second column position.
D. Multiply row 2 by 
.
Answer: D
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Write the first six terms of the arithmetic sequence with the first term, a1, and common difference, d.a1 = 9.8, d = 0.6
A. 10.4, 11, 11.6, 12.2, 12.8, 13.4 B. 0.6, 10.4, 20.2, 30, 39.8, 49.6 C. 9.8, 10.4, 11, 11.6, 12.2, 12.8 D. 10.4, 20.2, 30, 39.8, 49.6, 59.4
Find the exact value of the expression.cos 285°
A. -
(
- 1)
B. -
(
+ 1)
C. - 
D. 
Simplify. Assume that no denominator is zero and 00 is not considered.m5 ? m9 ? m4
A. m180 B. m54 C. (3m)18 D. m18
Find an equation of the line described. Write the equation in slope-intercept form if possible.Through (0, 0) and 
A. y = 
x
B. y = 2x
C. y = 2
D. y = 