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Solve the equation \(4 x^{2}-8 x-3=0\)
1 answer 47 views
Solve the equation \(4 x^{2}-8 x-3=0\)Solve the equation \(4 x^{2}-8 x-3=0\) ...
by Pieter Gold Status
(30,445 points)
asked in Mathematics May 4
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Solve the simultaneous equations \(x+y=3\) and \(2 x^{2}+4 x y-y=15\)
1 answer 22 views
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\(y=x^2+2x-3\) and \(y-5=2x-4 \) simultaneously
1 answer 85 views
\(y=x^2+2x-3\) and \(y-5=2x-4 \) simultaneouslySolve for \(x\) and \(y\) in the following pair of simultaneous equation \(y=x^2+2x-3\) and \(y-5=2x-4\) ...
by Mthoko
asked in Mathematics Mar 30
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Find the values of \(w,x,y,z\)
1 answer 93 views
Find the values of \(w,x,y,z\)Find the values of \(w,x,y,z\) \ \begin{aligned} &w+x+y=49 \\ &x+y+z=30 \\ &y+z+w=35 \\ &z+w+x=42 \end{aligned} \ ...
by MathsGee Platinum
(118,646 points)
asked in Mathematics Mar 17
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Solve \(8^{x}=\frac{2^{56}-4^{26}}{30}\)
1 answer 117 views
Solve \(8^{x}=\frac{2^{56}-4^{26}}{30}\)Solve \(8^{x}=\frac{2^{56}-4^{26}}{30}\) ...
by MathsGee Platinum
(118,646 points)
asked in Mathematics Mar 17
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How do I solve this recurrence with substitution method \(T(n)=T(n-2)+2^ n\) ?
0 answers 120 views
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Subtract \(\quad-4 x+8 y+6\) from \(2 x+3 y-1\)
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The HCF of \(12 x^{2} y ; 42 x^{3} y^{2} ; 27 x y\) is:
0 answers 42 views
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Solve for \(y: 3 y-5=y+8\)
1 answer 79 views
Solve for \(y: 3 y-5=y+8\)Solve for \(y: 3 y-5=y+8\) ...
by MathsGee Platinum
(118,646 points)
asked in Mathematics Feb 3
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Solve \(\frac{3 x^{2}+x-1}{1}+\frac{1}{3 x^{2}+x-3}=0\)
1 answer 61 views
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Consider the system of equations \[ \begin{aligned} &x+y-z=a \\ &x-y+2 z=b . \end{aligned} \]
0 answers 51 views
Consider the system of equations \[ \begin{aligned} &x+y-z=a \\ &x-y+2 z=b . \end{aligned} \]Consider the system of equations \ \begin{aligned} &x+y-z=a \\ &x-y+2 z=b . \end{aligned} \ a) Find the general solution of the homogeneous ...
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Consider the system of linear equations
0 answers 45 views
Consider the system of linear equationsConsider the system of linear equations \ \begin{array}{rc} k x+y+z & =1 \\ x+k y+z & =1 \\ x+y+k z & =1 \end{array} \ For what value(s) ...
by MathsGee Platinum
(118,646 points)
asked in Mathematics Jan 20
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Solve the equations for \(x, y\), and \(z\).
0 answers 86 views
Solve the equations for \(x, y\), and \(z\).Solve the equations for \(x, y\), and \(z\). \(x+0 y+3 z=2 \) \(2 x+3 y+2 z=1\) \(2 x+2 y+3 z=3\) HINT: If \(A=\left(\begin{array}{lll}2 & 3 & ...
by MathsGee Platinum
(118,646 points)
asked in Mathematics Jan 20
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Solve the equation \(4 y^{2}-12 y+9=0\)
0 answers 52 views
Solve the equation \(4 y^{2}-12 y+9=0\)Solve the equation \(4 y^{2}-12 y+9=0\) ...
by MathsGee Platinum
(118,646 points)
asked in Mathematics Jan 11
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(a) Solve the equation: \(x^{2}-9 x+8=0\) (b) Hence solve the equation: \(y^{3}-9 y^{\frac{3}{2}}+8=0\)
1 answer 89 views
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Solve the equation \( 8^{2 x-5}=2^{x+1} \)
1 answer 65 views
Solve the equation \( 8^{2 x-5}=2^{x+1} \)Solve the equation \( 8^{2 x-5}=2^{x+1} \) ...
by MathsGee Platinum
(118,646 points)
asked in Mathematics Nov 9, 2021
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Solve the equation \(\frac{1}{3}(1-x)^3=9\)
1 answer 72 views
Solve the equation \(\frac{1}{3}(1-x)^3=9\)Solve the equation \(\frac{1}{3}(1-x)^3=9\) ...
by MathsGee Platinum
(118,646 points)
asked in Mathematics Oct 24, 2021
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Solve the following system of differential equation
0 answers 58 views
Solve the following system of differential equationSolve the following pair of differential equation $ \frac{dx}{dt} =2x+6y$ $ \frac{dy}{dt} = 2x+2y$   with the conditons $x(0)=0$ and $y(0)=4$ ...
by Claudia Bronze Status
(5,844 points)
asked in Mathematics Oct 7, 2021
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Solve simultaneously for x and y
1 answer 84 views
Solve simultaneously for x and ySolve simultaneously for $x$ and $y$ $x+y=3$ $2x^2+4xy-y=15$ ...
by Claudia Bronze Status
(5,844 points)
asked in Mathematics Oct 7, 2021
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Suppose \(A=\left[\begin{array}{ccc}0 & 5 & -1 \\ 2 & 1 & 4\end{array}\right]\) and \(B=\left[\begin{array}{cc}4 & -1 \\ 2 & 10\end{array}\right]\)

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Suppose \(A=\left[\begin{array}{cc}1 & 3 \\ -1 & 2\end{array}\right]\) and \(B=\left[\begin{array}{c}10 \\ 5\end{array}\right]\).
1 answer 286 views
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Suppose \(A=\left[\begin{array}{cc}0 & -2 \\ 3 & 1 \\ -1 & 4\end{array}\right]\) and \(B=\left[\begin{array}{cc}3 & 1 \\ 2 & -2 \\ 0 & -2\end{array}\right]\)

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Suppose \(A=\left[\begin{array}{cc}0 & -2 \\ 3 & 1 \\ -1 & 4\end{array}\right]\) and \(B=\left[\begin{array}{cc}3 & 1 \\ 2 & -2 \\ 0 & -2\end{array}\right]\)

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For the matrix \[ A=\left[\begin{array}{ccc} 1 & 0 & -3 \\ 2 & 3 & 4 \end{array}\right] \] Compute \(3 A\).
1 answer 239 views
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Suppose you are given the matrix \[ A=\left[\begin{array}{cc} 1 & -2 \\ 3 & 0 \\ -1 & 5 \end{array}\right] \]
1 answer 311 views
Suppose you are given the matrix \[ A=\left[\begin{array}{cc} 1 & -2 \\ 3 & 0 \\ -1 & 5 \end{array}\right] \]Suppose you are given the matrix \ A=\left\begin{array}{cc} 1 & -2 \\ 3 & 0 \\ -1 & 5 \end{array}\right \ a. Find the size of the matr ...
by Siyavula Bronze Status
(7,450 points)
asked in Mathematics Sep 6, 2021
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Solve the system of equations below with Gauss-Jordan elimination. \[ \begin{aligned} x+y-z &=10 \\ 2 x-y-z &=3 \\ -3 x-3 y+3 z &=-30 \end{aligned} \]

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Solve the system of equations below with GaussJordan elimination. \[ \begin{aligned} x+\quad y+\quad z &=120 \\ 0.04 x+0.06 y+0.1 z &=6 \end{aligned} \]

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Do all systems of linear equations have unique solutions?
1 answer 62 views
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Solve the system of equations below with GaussJordan elimination. \[ \begin{aligned} x+\quad y &=10 \\ 0.08 x+0.12 y &=0.84 \end{aligned} \]
1 answer 111 views
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Solve the system of equations below with Gauss-Jordan elimination.
0 answers 60 views
Solve the system of equations below with Gauss-Jordan elimination.Solve the system of equations below with Gauss-Jordan elimination. \ \begin{aligned} &2 x+5 y=-6 \\ &-3 x+y=-8 \end{aligned} \ ...
by Siyavula Bronze Status
(7,450 points)
asked in Mathematics Sep 5, 2021
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Write an augmented matrix for each of the system of equations below.
1 answer 99 views
Write an augmented matrix for each of the system of equations below.Write an augmented matrix for each of the system of equations below. a. \ \begin{gathered} 2 x+3 y=9 \\ x-y=-1 \end{gathered} \ b. \(\begin{aligned ...
by Siyavula Bronze Status
(7,450 points)
asked in Mathematics Sep 5, 2021
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Suppose you are given the matrix
1 answer 85 views
Suppose you are given the matrixSuppose you are given the matrix \(A=\left\begin{array}{cc}1 & -2 \\ 3 & 0 \\ -1 & 5\end{array}\right\) a. Find the size of the matrix ...
by Siyavula Bronze Status
(7,450 points)
asked in Mathematics Sep 5, 2021
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What is a matrix?
1 answer 59 views
What is a matrix?What is a matrix? ...
by Siyavula Bronze Status
(7,450 points)
asked in Mathematics Sep 5, 2021
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Solve the following system of equations. \[ \begin{aligned} &x-y=2 \\ &x+2 y=11 \\ &-2 x+5 y=5 \end{aligned} \]
1 answer 105 views
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Solve the following system of equations. \[ \begin{aligned} &x-3 y=-1 \\ &x+y=7 \\ &2 x+5 y=20 \end{aligned} \]
1 answer 82 views
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Solve the following system of equations. Let \(z\) be the parameter. \[ \begin{aligned} &x+2 y+3 z=1 \\ &2 x+y-z=6 \end{aligned} \]

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Solve the following system of equations. Let \(z\) be the parameter. \[ \begin{aligned} &x+3 y+6 z=19 \\ &2 x-3 y+3 z=2 \end{aligned} \]

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Solve the system of two equations in two unknowns. \[ \begin{aligned} &2 x-3 y=5 \\ &8 x-12 y=20 \end{aligned} \]
1 answer 162 views
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Solve the system of two equations in two unknowns. \[ \begin{aligned} &5 x+6 y=1 \\ &15 x+18 y=3 \end{aligned} \]
1 answer 207 views
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Solve the system of two equations in two unknowns. \[ \begin{aligned} &y=5 x+2 \\ &-10 x+2 y=1 \end{aligned} \]
1 answer 207 views
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Solve the system of two equations in two unknowns. \[ \begin{aligned} &x=1-2 y \\ &3 x+6 y=10 \end{aligned} \]
1 answer 197 views
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Does every system of equations have a unique solution?
1 answer 113 views
Does every system of equations have a unique solution?Does every system of equations have a unique solution? ...
by Siyavula Bronze Status
(7,450 points)
asked in Mathematics Sep 5, 2021
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Solve the system of equations by the Elimination Method. \[ \begin{aligned} &0.5 x-0.25 y=-0.5 \\ &-2 x+3 y=10 \end{aligned} \]
1 answer 166 views
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Solve the system of equations by the Elimination Method. \[ \begin{aligned} &0.1 x+0.3 y=1.4 \\ &9 x-3 y=-24 \end{aligned} \]
1 answer 158 views
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Solve the system of equations by the Elimination Method. \[ \begin{aligned} &-2 x-5 y=18 \\ &10 x+2 y=2 \end{aligned} \]
1 answer 137 views
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Solve the system of equations by the Elimination Method. \[ \begin{aligned} &2 x+3 y=-1 \\ &7 x-6 y=13 \end{aligned} \]
1 answer 168 views
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