Solved College Algebra Examples for Your Success

College
Algebra

How can I solve set of inequality and find the intervals for variables in inequalities in the document which I uploaded using excel.

Spoorthi 2022-07-31

Let T be the linear transformation whose standard matrix is given below. A=[7 5 4 -9 ,10 6 16 -4 ,12 8 12 7, -8 -6 -2 5] a) Decide if T is a one-to-one mapping.
b)Decide if Rn is mapped onto Rm

Damien Horton 2022-07-31

Find the inverse of the following matrix A, if possible. Check that $A A^{- 1} = I$ and $A^{- 1} A = I$
$A = [\begin{matrix} 7 & 4 \\ 7 & 7 \end{matrix}]$
The inverse, $A^{- 1}$ is ?

Livia Cardenas 2022-07-31

This has four parts to it. the following system of linear equations
x - y =2z=13
2x +2y -z =-6
-x + 3y +z = -7
a) Provide a coefficient matrix corresponding to the system oflinear equations
b) what is the inverse of this matrix?
c) What is the transpose of the matrix?
d) find the determinant for this matrix?

Hayley Bernard 2022-07-30

If the position vectors of points T and S are 3a, - 2a, +a, and 4a, + 6a, + 2a, respectively, find (a) the coordinates of T and S, (b) the distance vector from T to S, (c) the distance between T and S.

prkosnognm 2022-07-29

Find the inverse of the following matrix A, if possible. Check that $A * A^{- 1}$ and $A^{- 1} * A = I$
$A = [\begin{matrix} 4 & 8 \\ - 5 & - 10 \end{matrix}]$
The inverse, $A^{- 1}$ , is A=?

Rishi Hale 2022-07-29

Let P be the plane containing the point(-5,-5,5) and with normal vector <3,2,1>. Find thepoint of P closest to the point (6,1,2).

nisitapradhan 2022-07-29

Is A« B an ideal of R?

X-3Z= -3
2X+KY-Z= -2
X+2Y-KZ= 1

stylaria3y 2022-07-28

Find the distance between the skew lines
$r_{1} (t) = (1; 1; 0) + (1, 6, 2) t$ and $r_{2} (s) = (1, 5, 2) + (2, 15, 6) s$ .

Roselyn Daniel 2022-07-27

Find a unit vector parallel to the vector y=<1,-2,2> which points in the opposite direction.

iarc6io 2022-07-27

Find the unit vector along the line joining point (2, 4, 4) to point (-3,2,2).

Faith Welch 2022-07-26

Find the production matrix for the following input-output and demand matrices using the open model.
$A = [\begin{matrix} - 0.1 & 0.2 \\ 0.55 & 0.4 \end{matrix}]$
$D = [\begin{matrix} 3 \\ 4 \end{matrix}]$

Jaylene Hunter 2022-07-26

Solve the following system of equations by using the inverse of the coefficient matrix A.
(AX=B), x+5y=-10, -2x+7y=-31

Kade Reese 2022-07-25

If A is an n x n matrix , where are the entries on the main diagonal of A-A^T? Justify yoyr answer.

Usman Zahid2022-07-24

a5=0 and a15=4 what is the sum of the first 15 terms of that arithmetic sequence

Tyler Freeman2022-07-21

Which of the following options represents the same expression as (-3x)^2/3
$\frac{1}{{(3 x)}^{\frac{2}{3}}}$

(3x) $^{\frac{2}{3}}$

- $\sqrt[3]{{(3 x)}^{2}}$

${(\sqrt[3]{- 3 x})}^{2}$

$\sqrt[2]{27 x^{3}}$

$\sqrt[3]{9 x^{2}}$

${(\sqrt[2]{- 3 x})}^{3}$

Syed Islam2022-07-20

Vicucyxycj 2022-07-17

Brock Byrd 2022-07-16

Let $T : M_{2 x 2} \to R^{3}$ have matrix $[T]_{B, A} = [\begin{matrix} 1 & 2 & 0 & 1 \\ 0 & 1 & 1 & 0 \\ 1 & 1 & - 1 & - 1 \end{matrix}]$ relative to $A = {[\begin{matrix} 2 & 0 \\ 0 & 0 \end{matrix}], [\begin{matrix} 0 & 3 \\ 0 & 0 \end{matrix}], [\begin{matrix} 0 & 0 \\ 5 & 0 \end{matrix}], [\begin{matrix} 0 & 0 \\ 0 & 6 \end{matrix}]}$ and $β = {(1, 1, 1), (1, 2, 3), (1, 4, 9)}$ . Find the matrix of T relative to the bases $A^{'} = {[\begin{matrix} 1 & 0 \\ 0 & 0 \end{matrix}], [\begin{matrix} 0 & 4 \\ 0 & 0 \end{matrix}], [\begin{matrix} 0 & 0 \\ 2 & 0 \end{matrix}], [\begin{matrix} 0 & 0 \\ 0 & 7 \end{matrix}]}$ and $β^{'} = {(1, 1, 1), (1, 0, 0), (1, 1, 0)}$

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