Use Gauss-Jordan elimination to find the solution. Write the solution as an ordered triple. x - y + 8z = -107 6x + z = 17 3y - 5z = 89
A. (-5, -8, 13)
B. (-5, 8, 13)
C. (5, -8, -13)
D. (5, 8, -13)
Answer: D
Mathematics
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Let p represent 7 < 8, q represent 2 < 5 < 6, and r represent 3 < 2. Decide whether the statement is true or false.~q ? ~r
A. True B. False
Mathematics
Determine the coordinates of the focus and the equation of the directrix of the parabola.y2 = 40x
A. F(10, 0), x = 10 B. F(0, 10), y = -10 C. F(10, 0), x = -10 D. F(10, 10), x = 10
Mathematics
Solve the formula for the specified letter.I = 
for r
A. r = 
- IR
B. r = 
C. r = 
D. r = 
Mathematics
Solve the equation.
= 
A. 
B. 
C. 
D. 
Mathematics