Solve the system by using Gaussian elimination with backward substitution or by reducing the matrix to reduced-row echelon form.x - y + z = 10x + y + z = 6x + y - z = -4
A. (3, 5, -2)
B. (5, 3, -2)
C. No solution
D. (3, -2, 5)
Answer: D
Mathematics
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A. -12 B. -1 C. 0 D. 1
Mathematics
Provide an appropriate response.Triangle ABC has sides that measure the following: AB = 25 feet, BC = 30 feet and AC = 15 feet. Find the measure of angle A to the nearest tenth of a degree.
Fill in the blank(s) with the appropriate word(s).
Mathematics
Find the GCD for the given numbers by an appropriate method.960 and 1800
A. 60 B. 360 C. 960 D. 120
Mathematics
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Mathematics