Consider the matrix -5 3 4 A= 10 -8 -9 15 1 2 Show that we can write A as the product A = LU, where L, U are 3 x 3 matrices, and Lis lower triangular, while U is upper triangular. Hìnt: Row reduce A, using only row additions, to an echelon form and writing row operations as matrix multinlication

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Q: Please fill in the ven as well

A: Please follow the solution which is mentioned in step 2 

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A: Quetion :Use the graph to find the intervals on which the function is increasing and decreasing

Q: Factor the following fully b) 2x2 – 2x - 6 c) 12x2 + 11x – 36 | -

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Q: 3.) Solve the system of simultaneous equations using Gauss-Jordan method 20х — 9х2 + 15х33 354 - 9x1...

A: Given :20x1-9x2+15x3=354-9x1+16x2-5x3=-27515x1-5x2+18x3=307

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Q: Write a sentence to represent each question  1.3+4x 2. 15x-8 3. a•a•a=a³

A: As according to our policy we are allowed to do maximum three sub parts of the equation. Kindly repo...

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A: Let's find. 

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Q: Practice Graph each on a coordinate plane: 1) y-12 3) y<-½x + 4

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Q: what is 1/3 as a decimal

A: 1/3

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A: Topic:- function   

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A: I am attaching image so that you understand each and every step.

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A: Just I have used the triangle inequality of absolute function and easily prove that the given result...

Q: The forces in four members of a framework are F, „F2 ,F, and F,. They are related by the simultaneou...

A: Solution is given below: F1= -1 F2= 0 F3= 0.6 F4= -0.8

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Q: 1. Solve the following proportion: 12 -8 (a) -12 (b) -14 (c) -16 (d) -18

A: As per our guidelines we can answer only 1 question so kindly repost the remaining questions specify...

Q: Use induction to prove Vn > 1: 3| (n³ + 2n).

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Q: Xmin = - 12, Xmax = 12, Xscl =2 Ymin= -6, Ymax 6, Yscl = 1 %3D %3D %3D

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A: Let's find. 

Q: oint Xmin = -6, Xmax = 6, Xscl =1 Ymin = - 18, Ymax = 18, Yscl = 3 %3D ng radicals as needed.)

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Q: [1 O 2] -11 2 2 Show that A = 2 -1 3 and B -4 1 are inverses. 4 1 8 6 -1 -1

A: Given,            A=1022-13418 and B=-1122-4016-1-1To find : The matrix A=1022-13418 and B=-1122-401...

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Q: 9- 8- 2 Consider the function graphed below. jo -9 - -6 12 -3 -6- -9 -10- Join mutiple intervals wit...

A: Topic:- function  Note :- as per our guideline if more than three subparts posted than only first th...

Q: X1 X2 X3 Y1 Y2 Y3 Z1 Z2 Z3 . Let A = | 0 1 2 |. Find A-' 1 2 4 z2 z3.

A: We can find the inverse matrix as below.

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Q: 2x + 1 Given: f(x) = 9x 3 Find the domain and range of f(x) and the function's inverse, f(x). Domain...

A: Given :- f(x) = (2x + 1)/(9x - 3) Let f(x) = y So, y = (2x + 1)/(9x - 3) 9x - 3 = 0 x = 3/9 x = 1/3 ...

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Q: Given the piecewise function below x² – 2 if x<0 f(x) = { -2 if Osxs3 1-x if 3<xs 10 What is the val...

A: A piecewise function is a function defined by multiple sub functions , where each sub function appli...

Q: 3x+7

A: It is an linear polynomial

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A: f=a,b : a,b∈Rg:f→M2×2 defined asga,b=ab00 , ∀a,b∈F

Q: In how many ways can you arrange 4 different Mathematics books, 3 of different Science books, and 2 ...

A: in how many ways can you arrange 4 different mathematics books, 3 of different science book,and 2 di...

Q: 10. Use the graph of f(x) below to sketch a graph of each expression 2*f(x – 3) f(x)

A: Transform f(x) to 2f(x-3) . 

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A: To express the salary as a function of sales.

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A: Given: log8(47)

Q: 1 -2 0 3 2 A = 1 1 -5 -1 %3D 0 2 3 4 2 1 3

A: to find out the determinant of the matrix by using the cofactor expansion method.