Recent questions tagged linear

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What are linear mixed models in SPSS?

asked Mar 14 in Data Science & Statistics by ♦Maths Genie Bronze Status (7,761 points) | 16 views

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Solve for x in x – 2 + 3 = –5. Show all steps

asked Feb 9 in Mathematics by ♦Maths Genie Bronze Status (7,761 points) | 48 views

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Solve for \(x\) in \(\frac{2 x}{3}=12\)

asked Feb 9 in Mathematics by ♦Maths Genie Bronze Status (7,761 points) | 43 views

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Solve the equation \(x-5=25\)

asked Feb 8 in General Knowledge by test25 (115 points) | 28 views

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state theory of "VC (Vapnik-Chervonenkis) dimension

asked Feb 5 in Data Science & Statistics by ♦GaussTheBot Diamond (44,526 points) | 49 views

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What is the slope-intercept form of a linear equation?

asked Jan 28 in Mathematics by ♦GaussTheBot Diamond (44,526 points) | 42 views

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how to graph linear equations

asked Jan 27 in Mathematics by ♦GaussTheBot Diamond (44,526 points) | 41 views

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Solve the equation: \(2(x + 3) = 12\)

asked Jan 14 in Mathematics by ♦MathsGee Diamond (88,200 points) | 75 views

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Is time linear?

asked Jan 6 in Mathematics by ♦MathsGee Diamond (88,200 points) | 54 views

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How do businesses use linear programming to optimize resources and maximize profit?

asked Dec 15, 2022 in General Knowledge by ♦MathsGee Diamond (88,200 points) | 90 views

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A company makes two products ( \(X\) and \(Y\) ) using two machines ( \(A\) and \(B\) ). Each unit of \(X\) that is produced requires 50 minutes processing time on machine \(A\) and 30 minutes processing time on machine B.

asked Dec 7, 2022 in Mathematics by ♦MathsGee Diamond (88,200 points) | 106 views

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How do you fit a linear model in R?

asked Dec 6, 2022 in Data Science & Statistics by ♦MathsGee Diamond (88,200 points) | 105 views

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Let \(A\) be a \(2 \times 2\) real matrix with entries from \(\{0,1\}\) and \(|A| \neq 0\). Consider the following two statements :

asked Nov 29, 2022 in Mathematics by ♦Maths Genie Bronze Status (7,761 points) | 75 views

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What does a linear regression model look like?

asked Nov 28, 2022 in Data Science & Statistics by ♦MathsGee Diamond (88,200 points) | 94 views

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What are linear equations?

asked Nov 23, 2022 in Mathematics by ♦MathsGee Diamond (88,200 points) | 86 views

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What is the difference between a linear and non-linear function?

asked Oct 26, 2022 in Mathematics by ♦MathsGee Diamond (88,200 points) | 55 views

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Prove that the equation \(x^2+y^2+z^2=x+y+z+1\) has no rational solutions.

asked Sep 23, 2022 in Mathematics by ♦MathsGee Diamond (88,200 points) | 102 views

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Given that \(z=3-3 \mathrm{i}\) express, in the form \(a+\mathrm{i} b\), where \(a\) and \(b\) are real numbers,

asked Sep 13, 2022 in Mathematics by ♦MathsGee Diamond (88,200 points) | 66 views

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Find \(\frac{\mathrm{z}_2}{\mathrm{z}_1}\) in the form \(a+\mathrm{i} b\), where \(a\) and \(b\) are expressed in terms of \(p\).

asked Sep 13, 2022 in Mathematics by ♦MathsGee Diamond (88,200 points) | 86 views

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Where can I get free linear algebra notes?

asked Aug 14, 2022 in Mathematics by ♦GaussTheBot Diamond (44,526 points) | 114 views

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What is the main objective of linear algebra?

asked Aug 11, 2022 in Mathematics by ♦MathsGee Diamond (88,200 points) | 126 views

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Consider a linear operator \(L: \mathbb{R}^{2} \rightarrow \mathbb{R}^{2}\),

asked Aug 11, 2022 in Mathematics by ♦MathsGee Diamond (88,200 points) | 107 views

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What is a matrix transformation in mathematics?

asked Aug 11, 2022 in Mathematics by ♦MathsGee Diamond (88,200 points) | 121 views

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What is a linear transformation in mathematics?

asked Aug 11, 2022 in Mathematics by ♦MathsGee Diamond (88,200 points) | 128 views

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Let \(T: \mathbb{R}^{3} \rightarrow \mathbb{R}^{2}\) be the linear transformation defined by \[ T(x, y, z)=(x+y+z, x+3 y+5 z) \]

asked Aug 11, 2022 in Mathematics by ♦MathsGee Diamond (88,200 points) | 148 views

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Let \(\beta\) and \(\gamma\) be the following standard ordered bases of \(M_{2 \times 2}(\mathbb{R})\) and \(P_{2}(\mathbb{R})\), respectively:

asked Aug 11, 2022 in Mathematics by ♦MathsGee Diamond (88,200 points) | 77 views

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Let a:V-W be a linear map that is endomorphism with bases B=(1,x^2,x^3) and defined by a(p)=(1-x^2)p')'. Find the matrix A that represent the linear map

asked Aug 10, 2022 in Data Science & Statistics by Yussif (5 points) | 114 views

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Prove that the equation \(x^{6}+x^{4}+2 x^{2}+1=0\) has no real solutions.

asked Jul 28, 2022 in Mathematics by ♦MathsGee Diamond (88,200 points) | 91 views

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What is moving within the linear regression channel in stock market analysis?

asked Jul 23, 2022 in Data Science & Statistics by ♦GaussTheBot Diamond (44,526 points) | 127 views

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What assumptions are made in a 2-sector economic model?

asked Jul 20, 2022 in General Knowledge by ♦MathsGee Diamond (88,200 points) | 121 views

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K-fold cross-validation is Which of the following is the right choice? Explain your answer.

asked Jul 10, 2022 in General Knowledge by ♦GaussTheBot Diamond (44,526 points) | 116 views

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Triangle \(A B C\) is similar to triangle \(X Y Z\) with side \(A B\) measuring 4 units, side \(B C\) measuring 6 units and side \(X Y\) measuring 14 units. What is the measure of side \(Y Z ?\)

asked Jul 10, 2022 in Mathematics by ♦GaussTheBot Diamond (44,526 points) | 111 views

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The solutions to \(z^{4}=4-4 i \sqrt{3}\) can be expressed in the form

asked Jul 10, 2022 in Mathematics by ♦GaussTheBot Diamond (44,526 points) | 79 views

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What is \(333_{4}-344_{5}\) when expressed in base 10 ?

asked Jul 8, 2022 in Mathematics by ♦GaussTheBot Diamond (44,526 points) | 55 views

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Consider the system of linear equations

asked Jul 7, 2022 in Mathematics by ♦MathsGee Diamond (88,200 points) | 134 views

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Show that \(S A\) is a projection in \(R^{n}\) whose nullspace is \(\mathcal{N}(A)\) and whose range is \(\mathcal{R}(S)\).

asked Jul 5, 2022 in Mathematics by ♦GaussTheBot Diamond (44,526 points) | 77 views

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Prove that null spaces and ranges of linear transformations are vector spaces.

asked Jul 5, 2022 in Mathematics by ♦GaussTheBot Diamond (44,526 points) | 117 views

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How do we solve coupled linear ordinary differential equations?

asked Jul 2, 2022 in Mathematics by ♦GaussTheBot Diamond (44,526 points) | 125 views

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Consider the autonomous system. Show that a gradient system cannot have any limit cycle solutions.

asked Jul 2, 2022 in Mathematics by ♦GaussTheBot Diamond (44,526 points) | 68 views

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Consider the initial value problem for the system of linear first order ordinary differential equations \[ \frac{d \mathbf{u}}{d t}=A \mathbf{u}+\mathbf{b}(t) \]

asked Jul 2, 2022 in Mathematics by ♦GaussTheBot Diamond (44,526 points) | 86 views

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Let \(\epsilon \in(0,1)\). Consider the three linear systems of differential equations

asked Jul 2, 2022 in Mathematics by ♦GaussTheBot Diamond (44,526 points) | 84 views

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Consider the non-autonomous linear system of differential equations

asked Jul 2, 2022 in Mathematics by ♦GaussTheBot Diamond (44,526 points) | 106 views

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Show that \[ u(x)=\frac{m}{\sqrt{c}} \tanh (m x / \sqrt{2}) \] satisfies the nonlinear second order differential equation

asked Jul 1, 2022 in Mathematics by ♦GaussTheBot Diamond (44,526 points) | 85 views

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Consider the nonlinear second order differential equation \[ \frac{d^{2} u}{d t^{2}}=c e^{u} . \] Show that there is a first integral.

asked Jul 1, 2022 in Mathematics by ♦GaussTheBot Diamond (44,526 points) | 93 views

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Consider the first order differential equation \[ \frac{d u}{d t}=\sin (t) u \]

asked Jul 1, 2022 in Mathematics by ♦GaussTheBot Diamond (44,526 points) | 64 views

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Consider the initial value problem for the autonomous system of first order ordinary differential equation \[ \frac{d \mathbf{u}}{d t}=\mathbf{f}(\mathbf{u}), \quad \mathbf{u}(0)=\mathbf{u}_{0} \]

asked Jul 1, 2022 in Mathematics by ♦GaussTheBot Diamond (44,526 points) | 103 views

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Consider the linear first order delay-differential equation \[ \frac{d u}{d t}=-u(t-1) \] Find the solution with the ansatz

asked Jul 1, 2022 in Mathematics by ♦GaussTheBot Diamond (44,526 points) | 88 views

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Consider the initial value problem \[ \frac{d u}{d t}+2 t u=0, \quad u(0)=1 . \]

asked Jul 1, 2022 in Mathematics by ♦GaussTheBot Diamond (44,526 points) | 54 views

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Consider the first order differential equation \[ \frac{d u}{d t}=u-u^{3} \] Find the fixed points. Study the stability of the fixed points. Show that the differential equation can be written as

asked Jul 1, 2022 in Mathematics by ♦GaussTheBot Diamond (44,526 points) | 76 views

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Consider the nonlinear differential equation \[ \frac{d u}{d t}=\cos (u) \sin (u) \]

asked Jul 1, 2022 in Mathematics by ♦GaussTheBot Diamond (44,526 points) | 69 views

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