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2 pages/≈550 words
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APA
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Mathematics & Economics
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Math Problem
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Math Problem (Precalc group 5) (Math Problem Sample)

Instructions:

9.1 (a) Solve each system by substitution. 3x + 4y = 4 x - y = 13 (b) Use the given row transformation to change each matrix as indicated. {1 -4}; -7 time row 1 added to row 2 {7 0} 9.3 (a) Find the Values of each determinant {6 -4} {0 -1} (b) Give all solutions of each nonlinear system of equations, including those with nonreal complex components. x^2 + y = 2 x – y = 0

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Content:
Precalc group 5
Name
Course
Instructor
Date
9.1 (a) Solve each system by substitution
3x + 4y = 4 x - y = 13
Calculations
X-Y=13
x=13+y
3x+4y=4
3(13+y) +44=4
39+3y+4y=4
7y=-35
Y=35/7=5
X=13-5=8
X=8, Y=-5 (b) Use the given row transformation to change each matrix as indicated. {1 -4}; -7 time row 1 added to row 2 {7 0} =7*(1+-4)+ {7 0)={14 -28}=7{2 -4} 9.3 (a) Find the Values of each determinant  {6 -4} {0 -1} Determinant= ad-bc=(6*-1)-(4*0)= -6 (b) Give all solutions of each nonlinear system of equations, including those with nonreal complex components. x^2 + y = 2 x – y = 0
Calculation
X^2+y=2
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