Perform the row operation(s) on the given augmented matrix.R2 = -5r1 + r2 
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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Set up an integral for the length of the curve.y = 3 cos x, 0 ? x ? ?
A. 
B. 
C. 
D. 
Mathematics
Use Cramer's rule to solve the linear system. If D = 0, use another method to determine the solution set. 8x + 7z = 59-7x + 8y + 8z = 83 8x - 5y = -16
A. {(3, 8, 5)} B. {(3, -8, -5)} C. {(8, 5, 8)} D. ({4, 6, 5)}
Mathematics
Solve.A painting in a museum is 150 centimeters wide. Convert this width to inches. Round answer to the nearest hundredth, if necessary.
A. 381 in. B. 492 in. C. 45.73 in. D. 59.06 in.
Mathematics
Perform the division.
A. x2 + 4 B. x - 9 C. x3 - 9 D. x + 4
Mathematics