1,954 Answered Questions for the topic linear algebra

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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Linear Algebra

03/27/21

Linear Algebra and Linear Equation
Mark invested a total of P33 000.00 in three parts : the first at 5%, the second at 6%, and the third at 8%. His profit at the end of the year was P 2230. Had he interchanged the rates of the first... more
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Linear Algebra Linear Equations

03/27/21

Algebra (Linear Algebra)
The sum of the digits of a three-place number is 14. If the digits are reversed and the resulting number is added to the original, the sum is 1171. If the resulting number is subtracted from the... more
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Linear Algebra

03/26/21

Determine which of the following are subspaces ?

U∪V={x∈Rn | x∈U or x∈V}, where U and V are fixed (but arbitrary) subspaces of Rn  w = {A^2 * x | x ∈ R2}, where A is a fixed, but arbitrary 2×2 matrix. 3.3 X = {x ∈ Rn | Ax = Bx}, where A... more
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Linear Algebra Math Algebra 1 Algebra 2

03/26/21

Please help me as soon as possible please with algebra homework

Question 1.) A carpet cleaning business has 100 customers when they charge $125 for a cleaning. Research shows that every $5 reduction in price attracts another 20 customers. Which equation could... more
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Linear Algebra Math Algebra 1 Algebra 2

03/26/21

Please help me with this algebra homework question as soon as possible please

Question 1.) A carpet cleaning business has 100 customers when they charge $125 for a cleaning. Research shows that every $5 reduction in price attracts another 20 customers. Which equation could... more
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Linear Algebra Math Algebra 1 Algebra 2

03/26/21

Hello, I need assistance with my algebra homework very soon please

Question 1.) A carpet cleaning business has 100 customers when they charge $125 for a cleaning. Research shows that every $5 reduction in price attracts another 20 customers. Which equation could... more
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Linear Algebra

03/26/21

Which of these transformations is not linear? The input is v = (v1, v2). (i) T(v) = (v1, v2). (ii) T(v) = (v1, v1). (iii) T(v) = (0, v1). (iv) T(v) = (0, 1).
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Linear Algebra Math Algebra 1 Algebra 2

03/26/21

application of linear algebra
Question # 2: Consider an open economy with three industries: coal-mining operation, electricity-generating plant and an auto-manufacturing plant. To produce $1 of coal, the mining... more
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Linear Algebra Math Algebra 1 Algebra 2

03/26/21

Hi um so these questions have stumped me for days please help me with my math homework

1.) Which function should be used to when evaluating the function at x = 3?A.)B.)2.) A computer training institute has 625 students paying $400 as the course fee. Their research shows that for... more
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Linear Algebra Math Algebra 1 Algebra 2

03/26/21

Hi I have not gotten any help please respond please help me very quickly

1.) Which function should be used to when evaluating the function at x = 3?A.)B.)2.) A computer training institute has 625 students paying $400 as the course fee. Their research shows that for... more
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Expert Answers •2
Linear Algebra Math Algebra 1 Algebra 2

03/26/21

Poor favor I am in desperate need of help I have not received any and I am on the verge of crying please help
1.) A carpet cleaning business has 100 customers when they charge $125 for a cleaning. Research shows that every $5 reduction in price attracts another 20 customers. Which equation could be used to... more
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Expert Answers •2
Linear Algebra Math Algebra 1 Algebra 2

03/26/21

Hi please respond and help very quickly with math homework please
1.) A carpet cleaning business has 100 customers when they charge $125 for a cleaning. Research shows that every $5 reduction in price attracts another 20 customers. Which equation could be used to... more
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Expert Answers •1
Linear Algebra Math Algebra 1 Algebra 2

03/26/21

Por favor I need help with my algebra homework please very quickly I have needed help for hours
1.) The cost to print photos is modeled by C(n), where n represents the number of prints.The print shop plans to raise the rate per printed photo by $0.10, and offer a 25% discount on the rate if... more
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Linear Algebra Math Algebra 1 Algebra 2

03/26/21

Hello I have not received help from anyone and I am so desperate I need help with my algebra homework please very quickly

1.) The cost to print photos is modeled by C(n), where n represents the number of prints.The print shop plans to raise the rate per printed photo by $0.10, and offer a 25% discount on the rate if... more
Follows • 2
Expert Answers •2
Linear Algebra Math Algebra 1 Algebra 2

03/26/21

I am in desperate need of help with my algebra homework please please help me as soon as possible very quickly please respond

1.) Which function should be used to when evaluating the function at x = 3?A.)B.)2.) A computer training institute has 625 students paying $400 as the course fee. Their research shows that for... more
Follows • 1
Expert Answers •1

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