Use elementary row operations to determine A-1 (you should be able to do (a) elementary row operations without introducing fractions). (b) Use A-1 to solve for X if AX = B where В —

Q: 2x + 6y = 4 5x + 15y = 10 Use the substitution method and show work.

A: Given: The system of equations 2x+6y=4 5x+15y=10 To find: Solution to the given system by method…

Q: 8) Multiply: (2a-3)(5a + 1) a. 10a²-3 d. 10a²13a-3 b. 7a²-2 e. 10a²-6a-3 c. 7a²-5a-2

A:

Q: x2 - 8x -5 = 0 can be transformed into the equation (x - p)2 = q

A: The objective of the question is to transform the given quadratic equation x^2 - 8x - 5 = 0 into the…

Q: solve for v 5(v-8)=3v-38

A: The given equation is

Q: (x + 2)2 + (y + 1)2 =

A: Use the formula a+b2=a2+b2+2ab (x+2)2=x2+22+2(x)(2) =x2+4+4x Also, (y+1)2=y2+12+2(y)(1) =y2+1+2y So,…

Q: x + 2y3z + 2t 2x + 5y8z + 6t 3x + 4y - 5z + 2t = 2 = 5 = 4

A:

Q: 3. Solve for X Y when using row operations. 2X + 4Y = 144 X +0.25Y = 30

A: The given system of equations

Q: -x + y2 = 3 and x + y2 - y = 0

A: Consider the given equations as,

Q: 8y

A:

Q: Solve: х-5 Зx+2 х2-3х-4 х2—1 ||

A:

Q: Solve Using Gauss-Jordan -2x1 + x₂ + 6x3 = 18 - 5x1 + 0x2 + 8x3 = -16 3x1 + 2x2 - 10x3 = -3 x1: x2:…

A:

Q: Find det(B)

A: Given that: det-1A-1=-5=detA3B-1T-1A-1=-5=A3B-1T As we know, detkM=kndetkM and detM=1detM-1. (Here,…

Q: (q/q-3) + 1 = (2/2q+1)

A: To solve for q, firstly, we take l.c.m on left hand side of equation.

Q: Solve graphically:                                    2x – 3y + 13 = 0 and 3x – 2y + 12 = 0

A: Given,

Q: Find all solutions of:2x + 2y + 4z = 8x - y + 2z = 2-x + 5y - 2z + 2

A: First we describe the given equations as a matrix. And then we use Linear algebra to solve the given…