1,954 Answered Questions for the topic linear algebra

Linear Algebra Math Algebra 1 Algebra 2

09/23/20

Linear Models Diamond problem
Diamonds are priced by their carat weight. A 0.12 carat diamond is priced at $334.50 and a 0.17 carat weight diamond is priced at $1,629. Find an equation for the line that passes through these... more
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Linear Algebra Math Algebra 1 Algebra 2

09/23/20

Linear Models Diamond problem
Diamonds are priced by their carat weight. A 0.12 carat diamond is priced at $334.50 and a 0.17 carat weight diamond is priced at $1,629. Find an equation for the line that passes through these... more
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Linear Algebra

09/21/20

what is the slope of the line that passes through (1,-19) and (-2,-7)
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Linear Algebra

09/20/20

Find all the subspaces of R2.
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Linear Algebra Sat Math

09/19/20

The combustion of butane in oxygen produces carbon dioxide and water. C4H10 + O2 → CO2 + H2O .Find a balanced chemical equation for this reaction.
For the question above use the following instructions :-i)               Form the system of linear equationsii)             Change the augmented matrix to reduced row-echelon form
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Linear Algebra Math Calculus Discrete Math

09/18/20

Please help with the following question!!!
Which of the following quantified statements is (are) true? Let the domain for  be the set of all real numbers.[Note: There may be multiple correct answers!]a.) b.) c.) d.)  e.) f.)
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09/18/20

Please help with the following question!!!!!!
Consider the following statement:There exists an integer  such that        .This could be written in symbolic form asa.)  b.)  c.)     
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09/18/20

Please help with predicate!!!!
If the domain is  - the set of all integers (i.e.,  ), then the predicate    is TRUE for all of the following values of :a.) No values of in this domain make the predicate trueb.) - this is the... more
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Linear Algebra

09/17/20

linear algebra

Find the value(s) of the constant k such that the system of linear equations:x + 2ky = k,2kx + 4ky = 4k − 2has(i) No solution.(ii) An infinite number of solutions.(iii) Exactly one solution
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Linear Algebra

09/16/20

Total spent MYR 66 100. Price for kayak 8600, price for canoe 9800, price for boat 6500. How many quantity of these three things he purchased?
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Linear Algebra

09/13/20

Suppose Ax = b and Cx = b have same solutions for every b. Is it true that A = C?
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Linear Algebra

09/10/20

Let  be unknown constants and consider the linear system: . . . . . . This system has a unique solution whenever ℎ≠
Let  be unknown constants and consider the linear system:- 7x + 4y + 6z = - 64x + 9y - 3z = 813x - 30y + hz = kThis system has a unique solution whenever ℎ≠
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Linear Algebra

09/10/20

Rewrite the system of equations in echelon form.
4z = 4 - y - 2z = 06x + 7y + 4z = 8Rewrite in echelon form:Equation 1:Equation 2:Equation 3:
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Linear Algebra

09/10/20

one less than the product of 16 and Greg’s age

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Linear Algebra

09/03/20

Which formula is equivalent to the slope formula

Consider the formula for the slope between two coordinate points, m, shown below.M=y2 minus y1 over x2 minus x1Which of the following equations is equivalent to the slope formula?A.)... more
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Linear Algebra Proofs

09/02/20

Proofs in matrices

Given that A2 = I, prove that at least one of (A-I) and (A+I) is singular. I don't know how to do proofs but i'd like to see how to approach these kinds of questions thank you!
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Linear Algebra

09/02/20

A rectangular athletic field is twice as long as it is wide if the perimeter of the athletic field is 150 yards what are the dimensions? What is the width in yards?
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Linear Algebra

08/29/20

Linear Algebra augmented matrix
1x + 1y + 4 z = 01x + 2y - 3z = 32x +7y + kz = 16for what value of “k” will the systems have no solutions?
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Linear Algebra

08/26/20

Fit a linear function of the form f(t)=c0+c1t to the data points (−6,22), (0,−5), (6,−26), using least squares.
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Linear Algebra

08/26/20

Find the least-squares solution x* of the system
[1 1 1 1, -1 -1 1 1, 1 -1 1 -1] x=[7 -7 5 7]x*=[ ]
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Linear Algebra

08/26/20

Use the Gram-Schmidt process to determine an orthonormal basis for the subspace of R4 spanned by x, y, and z.
Let x=[-4 -1 -2 0], y=[-8 -1.5 1 1], z=[10 -7 -6 23]
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Linear Algebra

08/25/20

Fit a trigonometric function of the form f(t) = c0 + c1 sin(t) + c2 cos(t) to the data points (0,-9.5), (π/2,-1.5), (π,8.5), (3π/2,-1.5), using least squares.
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Linear Algebra

08/25/20

Fit a quadratic function of the form f(t)=c0+c1t+c2t^2 to the data points (0,−6), (1,0), (2,−8), (3,−10), using least squares.
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Linear Algebra

08/25/20

Use the Gram-Schmidt process to determine an orthonormal basis for the subspace of R4 spanned by x, y, and z.
Let x=[-4 -1 -2 0], y=[-8 -1.5 1 1], z=[10 -7 -6 23]
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Linear Algebra Matrix

08/24/20

How do you find the solution set of a matrix? Thank you!
1 0 0 2 3 | 40 1 0 5 6 | 90 0 1 1 1 | 7I'd like to see how to do this big matrix
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