Recent questions tagged linear

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Solve \(3x^2+5x+2x-1=0\)

asked Jul 16 in Mathematics by MathsGee Platinum (98.5k points) | 50 views

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Simplify \(3x^2+5x+2x-1=0\)

asked Jul 16 in Mathematics by MathsGee Platinum (98.5k points) | 48 views

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What is a perceptual map?

asked Jun 23 in Advertising & Marketing by MathsGee Platinum (98.5k points) | 89 views

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How do I solve linear inequalities?

asked May 23 in Mathematics by MathsGee Platinum (98.5k points) | 109 views

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What are linear mixed models in SPSS?

asked Mar 14 in Data Science & Statistics by Maths Genie Bronze Status (8.8k points) | 228 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 (8.8k points) | 150 views

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

asked Feb 9 in Mathematics by Maths Genie Bronze Status (8.8k points) | 144 views

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

asked Feb 8 in General Knowledge by test25 (117 points) | 119 views

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state theory of "VC (Vapnik-Chervonenkis) dimension

asked Feb 5 in Data Science & Statistics by AstraNova Diamond (55.6k points) | 161 views

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

asked Jan 28 in Mathematics by AstraNova Diamond (55.6k points) | 89 views

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how to graph linear equations

asked Jan 27 in Mathematics by AstraNova Diamond (55.6k points) | 118 views

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

asked Jan 14 in Mathematics by MathsGee Platinum (98.5k points) | 150 views

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Is time linear?

asked Jan 6 in Mathematics by MathsGee Platinum (98.5k points) | 127 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 Platinum (98.5k points) | 216 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 Platinum (98.5k points) | 447 views

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How do you fit a linear model in R?

asked Dec 6, 2022 in Data Science & Statistics by MathsGee Platinum (98.5k points) | 215 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 (8.8k points) | 134 views

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What does a linear regression model look like?

asked Nov 28, 2022 in Data Science & Statistics by MathsGee Platinum (98.5k points) | 227 views

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What are linear equations?

asked Nov 23, 2022 in Mathematics by MathsGee Platinum (98.5k points) | 192 views

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

asked Oct 26, 2022 in Mathematics by MathsGee Platinum (98.5k points) | 154 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 Platinum (98.5k points) | 201 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 Platinum (98.5k points) | 108 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 Platinum (98.5k points) | 145 views

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Where can I get free linear algebra notes?

asked Aug 14, 2022 in Mathematics by AstraNova Diamond (55.6k points) | 191 views

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What is the main objective of linear algebra?

asked Aug 11, 2022 in Mathematics by MathsGee Platinum (98.5k points) | 233 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 Platinum (98.5k points) | 166 views

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What is a matrix transformation in mathematics?

asked Aug 11, 2022 in Mathematics by MathsGee Platinum (98.5k points) | 203 views

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What is a linear transformation in mathematics?

asked Aug 11, 2022 in Mathematics by MathsGee Platinum (98.5k points) | 216 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 Platinum (98.5k points) | 286 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 Platinum (98.5k points) | 176 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) | 171 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 Platinum (98.5k points) | 138 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 AstraNova Diamond (55.6k points) | 222 views

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

asked Jul 20, 2022 in General Knowledge by MathsGee Platinum (98.5k points) | 204 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 AstraNova Diamond (55.6k points) | 189 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 AstraNova Diamond (55.6k points) | 186 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 AstraNova Diamond (55.6k points) | 118 views

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

asked Jul 8, 2022 in Mathematics by AstraNova Diamond (55.6k points) | 117 views

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Consider the system of linear equations

asked Jul 7, 2022 in Mathematics by MathsGee Platinum (98.5k points) | 188 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 AstraNova Diamond (55.6k points) | 137 views

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

asked Jul 5, 2022 in Mathematics by AstraNova Diamond (55.6k points) | 173 views

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How do we solve coupled linear ordinary differential equations?

asked Jul 2, 2022 in Mathematics by AstraNova Diamond (55.6k points) | 209 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 AstraNova Diamond (55.6k points) | 169 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 AstraNova Diamond (55.6k points) | 138 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 AstraNova Diamond (55.6k points) | 139 views

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Consider the non-autonomous linear system of differential equations

asked Jul 2, 2022 in Mathematics by AstraNova Diamond (55.6k points) | 194 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 AstraNova Diamond (55.6k points) | 129 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 AstraNova Diamond (55.6k points) | 191 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 AstraNova Diamond (55.6k points) | 119 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 AstraNova Diamond (55.6k points) | 188 views

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