Show that the sum of two lower triangular matrices is a lower triangular. Show that the scalar multiple of a diagonal matrix is also a diagonal matrix. Show that if A is any mxn matrix, then I,mA= A.

Q: A heating duct has a rectangular cross section whose area is 70 in2. If it is 9 in longer than it is...

A: We can find the length and width as below.

Q: To every linear transformation T from R? to R?, there an associated 2 x 2 matrix. Match the followin...

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Q: 6. Use the given conditions to write an equation for the line in point-slope form. Slope = -1, passi...

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Q: Find the inverse of the matrix if it exists A-[:] 0 4 1 5 5 4 Option 1 Option 2 5 5

A: Solve for the inverse of matrix

Q: a) Determine the cosine of the angles of the triangle whose vertices are A(1, –2,1), B(3,0, 2), C(0,...

A: a) Determine the cosine of the angle of the triangle whose vertices are A(1,-2,1), B(3,0,2), C(0,1,-...

Q: When we create a frequency table or histogram, we can still see all the informa the individual data ...

A: When we create a frequency table or histogram, we can still see all the information about the indivi...

Q: Simplify 6)6^)*

A:

Q: The normal probability of a z-score of -1.98 is 56.52%. True O False

A: Probability of Z score=-1.98 in possible accepts P(x<-1.98) = 0.023852=2.38%P(x>-1.98) = 0.976...

Q: onential functiòn g (x)= 3*. t two points on the graph of the function, and also draw the asymptote....

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Q: Q2: Solve the following equation using bisection method to find the root between x1=1 and x2=3 make ...

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Q: In simple interest, a certain sum of money amounts to 16200 in 2 years and 17400 in 3 years. Find th...

A:

Q: etermine whether the statement is true or false. If the statement is false, make the necessary chang...

A: To determine the weather statement true or false.

Q: 4. Find the Factors of the function. f(x) = x* - x³ +3x? -9x-54 zero: x = 3

A: Given query is to find find the factors of the expression.

Q: A circle is divided into two parts by a chord, 3cm away from the center. Find Uhe area of the smalle...

A:

Q: 1. An urn contains three red marbles, and six blue marbles. What is the probability of selecting at ...

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Q: 18. The domain and range of function F(t)= 1/(1+/t) Oa) Domain (0,00), range (0,1] Ob) Domain (0,1] ...

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Q: weasure of Angle UAB V VICTORY

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Q: 1 3 1 2n 2 ||

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Q: Write a function describing the relationship of the given variables. p varies inversely with the s...

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Q: Graph the solution set of the system of inequalities.   4x + y ≤ 3 −x + 2y ≥ 9

A: Given query is to graph the inequalities.

Q: cf14

A:

Q: 2. Determine the values of the variables to satisfy the equation. Ans. a = 10, b = 5 5a – 2b = 40

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Q: If 64 is added to the difference between the square of a number and 16 times the number, the result ...

A:

Q: 1² +11 If f(r) = Find f(4i).

A: Given query is to find the value of Indicated function.

Q: It's urgent solve in 15 min. : Consider the following production function where Y denotes output pr...

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Q: Find f+g. f-g. fg., and fig and their domains. Fx) = /25 -x. g(x) = vx + 3 Find (f+ g)(x). Find the ...

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Q: ----A Let u = and us = 20 Select all of the vectors that are in the span of fu,, U2, U3}. (Check eve...

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Q: What is 'a', if B as shown below is a singular matrix?

A: A singular matrix is a matrix whose determinant is zero.

Q: 2. FRACTIONS 44444KK Complete the number line by typing the correct fractions in the spaces provided...

A: Given query is to find the correct fraction.

Q: Graph the exponential function. (6) -- f(x) = Plot five points on the graph of the function, and als...

A:

Q: Let P(1, –2, 4) and v = (3, 1, –5), and let I be the line passing through P and in the direction of ...

A:

Q: Graph the exponential function g (x): -1. To do this, plot two points on the graph of the function, ...

A: Solution is written in below steps.

Q: 1. For every Php 2000 investment, there is a Php 5000 profit. What is the ratio of investment to pro...

A:

Q: f(x) = -x2 + 4x – 3

A: answer of given question is in next step 

Q: Age Distribution of the Population by Sex and Region (2019) (Numbers in thousands. Civilian Non-inst...

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Q: 3. Rae plans to build a rectangular pig pen against one of the walls of her barn. If she has 18 mete...

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Q: g(x) = 4x + 4 f(x) = x³ – 1 Find (go f)(x) g composition f is 4p3 Select one: O True O False

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Q: Determine the equation of the circle graphed below. 10 6 -10 -8 -6 6. 8 -4 -2 10 -6 -8 -10 2.

A: We have to find the equation of the graphed circle.

Q: Given: f(x) = 1(x + 2)² – 4 - a) The vertex is b) The y-intercept is c) The x-intercept(s) is(are) (...

A: answer is -

Q: [o 1 21 C = 1 [4 -3 8] 3

A:

Q: -15 What are all the restrictions for -+9 -127 A **-4, x 5,x*3 C. **-4,x 3 D.

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Q: Evaluate the following: 1. S sinº 4xcos®4xdn

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Q: | 1 . If A, =a a b c? 1 1 |1 bc a c, A, =1 1 ab b b then: са A+A, =0 A, +2A, =0 O Option 1 Option 2 ...

A: We need to choose correct option.

Q: 16. Assume that f is an even function, g is an odd function and bothf and g are defined on the entir...

A: Find your answer below 

Q: Given that x and y vary inversely and that y is 12 when x is 6, what is the constant of variation, k...

A: This question is based on inverse proportionality.

Q: Which statement best describes the two tables of values? i) 1 2 3 4 y 10.6 16.9 23.2 29.5 35.8 ii) 1...

A: solution:-   table(i)x1=1, x2=2, x3=3, x4=4, x4=5y1=10.6, y2=16.9, y3=32.2, y4=29.5, y5=35.8y2-y1x2-...

Q: Given: f(x) 1(x + 2)² – 4 a) The vertex is -2 X Invalid notation. b) The y-intercept is (0) c) The x...

A: We will find the vertex and x and y intercepts. 

Q: Determine the quadratic function f whose graph is given. 8- The vertex is (1, – 5) and the y-interce...

A: Question- Determine the quadratic function f whose graph is given. The vertex is (1,5) and the y-int...

Q: Choose the graph that best represents this description As the price increases, the number sold decre...

A: Solution is given below:

Q: Evaluate the variable expression when a = 4, b = 1, and c = -2. %3D %3D b2 - Зас

A: We have to put the value in the expression and find the value.