1,975 Answered Questions for the topic linear algebra

Linear Algebra

04/28/21

Linear Algebra: Orthogonal basis additon
Let W = span([-1,3,0], [2,2,1]), and v = [5,1,2]. Write down v as sum of two vectors v1 in W and v2 in W complement
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Linear Algebra Math Algebra 1 Algebra 2

04/27/21

What algebraic expression matches this graph?
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Linear Algebra Math Algebra 1 Algebra 2

04/27/21

What algebraic expression matches this graph?
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Linear Algebra Math Calculus Precalculus

04/23/21

Use a graphing utility to perform the indicated operations.
A = 2 0 and B = 5 3 4 5 1 4B2 − 3B + 7Ɪ2= _____ ______ ______ ______
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Linear Algebra Linear Equations

04/23/21

how do I solve this? 2 (x+3) > 6(x-1)
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Linear Algebra

04/21/21

if the slope is -7. what is the perpendicular slope?

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Linear Algebra

04/21/21

Need help with this proof
Let {~v1, · · · ~vm} ⊂ Rn be a linearly independent set. Let L ∈ Rm×n . Prove that, if null(L) = {~0}, then {L~v1, · · · L~vm} ⊂ Rm is a linearly independent set.
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Linear Algebra

04/20/21

Given an example of a set S with two binary operations such that S is closed under those binary operations but is not a vector space with respect to them.
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Linear Algebra

04/20/21

Determine whether the set {(2, 0, 1), (1, 1, 0), (0, 0, 1)} spans R3. Is this set linear independent?
Determine whether the set {(2, 0, 1), (1, 1, 0), (0, 0, 1)} spans . Is this set linear independent?
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Linear Algebra

04/20/21

See subsets in Description below, graph these subsets separately and determine whether either of them is a subspace of V.
Consider as a vector space with the standard operations, and the subsets W1:={(x, y) ∈ V | xy = 0} and W2:={(x, y) ∈ V | x + y = 0} of V. Graph these subsets separately and determine whether... more
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Linear Algebra

04/17/21

Question from the topic "Linear Algebra"

Consider the vector space V = R+ × R+ × R+, where R+ is the set of all positive real numbers withaddition and scalar multiplication defined by (x1, y1, z1) ⊕ (x2, y2, z2) =... more
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Linear Algebra Math Algebra 2 Calculus

04/17/21

State the elementary row operations applied to the first augmented matrix A to transform it to its row-equivalent matrix B.
A = 1 −2 7 6 4 1 B = 1 −2 7 0 16 −41 A: 2R2 + R1B: 5R2 - 15R1C: (-6)R1 + R2D: Interchange R1 and R2E: None of these
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Linear Algebra Math Algebra 2 Calculus

04/17/21

Use matrices and Gauss-Jordan elimination to solve systems of linear equations
The matrix 1 0 4 0 0 1 −6 −1 0 0 −5 5 can be reduced in the row echelon form 1 0 0 a 0 1 0 b 0 0 1 c where a, b, and c are real numbers. Find a. (Enter an exact number.)a = ____
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Linear Algebra Mathematics

04/14/21

17 apples and 12 oranges cost $10.44. 3 apples and 4 oranges cost $2.84. How much does 1 apple cost? How much does 1 orange cost?
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Linear Algebra

04/09/21

math help please
The Simmons family and the Taylor family each used their sprinklers last summer. The Simmons family's sprinkler was used for 20 hours. The Taylor family's sprinkler was used for 15 hours. There was... more
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Linear Algebra

04/05/21

What is seven more than a number is greater than seven?
seven more than a number is greater than seven
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Linear Algebra Math Mathematics

04/03/21

Determining possible values of determinant A
Let A be a 3 x 3 matrix and let 1/8A^3 - 1/2A = 0. What are all possible values of detA?A) -8, 2, 0B) -8, 8, 0C) -4, 2D) 4, 2E) 2, 0
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Linear Algebra Math

03/30/21

Price of Pretzel
If a beer and a pretzel costs $2.08. If the beer costs two dollars more than the pretzel, then what's the cost of the pretzel?Solve using one variable.Solve using a two system equation and two... more
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Linear Algebra

03/30/21

⟨f,g⟩=∫10f(x)g(x)dx in the vector space C0[0,1] of continuous functions on the domain [0,1] to find ⟨f,g⟩, ∥f∥, ∥g∥, and the angle αf,g between f(x) and g(x) for f(x)=−10x2−9 and g(x)=9x+3
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Linear Algebra

03/30/21

Use the inner product ⟨f,g⟩=f(−2)g(−2)+f(0)g(0)+f(1)g(1) in P2 to find the orthogonal projection of f(x)=2x2+3x+8 onto the line L spanned by g(x)=3x2−5x−9.
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Linear Algebra

03/29/21

Find the norm ∥x∥ of x=(1,−1/2,1/4,−1/8,1/16,…,1/((−2)^n−1),…) in ℓ2.
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Linear Algebra

03/29/21

In R4 let S=span((1,0,1,1)T,(0,2,1,0)T).
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Linear Algebra

03/27/21

Algebra (Linear Algebra)
A tourist has a collection of 33 coins consisting of Belgian francs ( 2 cents each), British shillings (14 cents), and German marks (25 cents each). The total value of the collection is $6.33. He... more
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Linear Algebra

03/27/21

Algebra (Linear Algebra)
Brine containing 40% salt is diluted by adding pure water, resulting in a 25% salt solution. Then 20 more gallons of pure water are added, diluting the mixture to a 20% salt solution. Find how much... more
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Linear Algebra Algebra

03/27/21

Linear Equation

A man spent P1500.00 for one pair of socks, one shirt and one pair of slacks. He found that twice the cost of a pair of socks less three times the cost of the shirt plus thrice the cost of the pair... more
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