Who was the first to make use of an abacus

Q: For the following exercises, solve each system by substitution. x-3y+5z=29,  3x+y-4z=-9,  4x-3y+7z=4...

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Q: Write the system of linear equations in the form Ax=b and solve this matrix equation for x. Show you...

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Q: A. Counting Principle. A survey of 90 customers were taken at Barnes & Noble regarding the types of...

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Q: 4. -5n + 10n -10

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Q: The table shows the educational attainment of the population of a country, ages 25 and over, express...

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Q: Amount of claim (to the nearest $20,000) $0 $20,000 $40,000 $60,000 Probability The table shows clai...

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Q: em of linear equations is consistent or inconsistent. Use row ow the matrix in REF (row echelon form...

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Q: As a rental for a building, the owner received two offer: a) 50,000 a year for 80 years, the rental ...

A: Option A Future value after 80 years is given by For fix annual payment=C ​FV ​= C×{[(1+i)n−1​]/i} w...

Q: Perpendicular to -5x + y = 5, through (5,5); slope- intercept form

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Q: Alex needs to rent a minivan for a week to take his band on tour. Easyvans charges $230 plus $0.14/k...

A: NOTE: Refresh your page if you can't see any equations. . Easyvans charges $230 plus $0.14/km let x=...

Q: Fut the following quadratic equations and inequalities into vertex form and graph: Graph the followi...

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Q: Suppose that the functions g and fare defined as follows. g (x) = 2x – 3 f(x) = 7x-8 %3D (a) Find |(...

A: (g/f)(x) = g(x)/f(x)

Q: What is the equation for h(x)? 4. If h(x) = f(x) + g(x) and f(x) = (x +4)2 -2 and g(x) = -3(x – 8) –...

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Q: Suppose that f is a linear function with slope -2 and that f(2) = 6. Find the equation for f. (Use x...

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Q: Find the inverse of the given matrix and verify if [4][A] = [A]-²[A] = [!]: [25 [A] = |10 4 8. 16 8 ...

A: The given matrix is: 25541081681222

Q: 1. Find the quotient using long division. Express the quotient as a rational expression. x+7)x +9x-1...

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Q: 2.3) Expand andexplain thhe steps involved. i) (3r-7 1 + 15) ii) (2 2,9 3rp) LAdd File

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Q: 6×80

A: Multiply the numbers 8 0×6________480________                 

Q: Let A = { 2, 3, 4, 5, 6 } and B = { 4, 6, 8, 10, 12 }. Find ANB, the intersection of sets A and B. *...

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Q: Solve the value of w, x, y and z on the given system of linear equations using any method you know. ...

A: Given 4w+x+2y-3z=-16     ....(1)-3w+3x-y+4z=20     .....(2)-w+2x+5y+z=-4     ......(3)5w+4x+3y-z=-10...

Q: Suppose that z varies jointly with the cube of x and the square of y. Find the constant of proportio...

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Q: 12.Given f(x)=xr², find and simplify an expression for: -2f(x-1)– 3

A: Since you have posted multiple question in this question which are not interlinked so i have solved ...

Q: Question 14 a) y = }(r – 4)² - 3 Describe the following transformations. b) y = -2sin( -D+1

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Q: he table shows the number, expressed in millions, of citizens who moved in 2004, categorized by wher...

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Q: The function h is defined as follows for the domain given. h (x) = 1-2x, domain = {-1, 0, 1, 2} Writ...

A: The function is  h(x) = 1 - 2x  

Q: Which of the following expressions has the greatest common monomial factor of 4x y? O 17x3y + 8y3- 4...

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Q: A city council consists of six Democrats and six Republicans. If a committee of five people is selec...

A: Please refer to the image below  

Q: (3+1) (ヨカ) (D-2) y= 48e

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Q: Simplify the given product below. (4x-3)2 O 16x2 - 24x + 9 O 16x2 – 12x + 9 O 16x2 + 9 O 16x + 24x +...

A: Expanding the product using (a-b)^2

Q: Given that f(x) -x? – la and g(x) = x – 3, calculate (a) (f o g)(x)=| (b) (g o f)(x)=| (c) (f o f)(x...

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Q: An ice cream store sells 4 drinks, in 3 sizes, and 7 flavors. In how many ways can a customer order ...

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Q: If a matrix A is 5 x 3 and the product AB is 5 x 7, what is the size of B? A) 7x7 в) 5х7 с) 7х3 D) 3...

A: A5×3×Bm×n=AB5×7by property of matricesfor product of matrices, Ac×d×Bm×n=ABc×n ; when d=m    

Q: A microwave company claims that their microwaves can pop popcorn in under 2.25 minutes. After 134 ra...

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Q: f For the given functions f and g, find – and state its domain. Write the domain in interval notatio...

A: Solution: f(x) =6x +1 g(x)= 5x-3

Q: Find the value of (2².33.5²)?

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Q: Use the formula for C, to evaluate the given expression. 11 CB 11C6 =(Type an integer or a simplifie...

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Q: 2. Use the table to write a function rule for h(x). -3 -2 -1 1 -3 - ( f(x)=2x+1 g(x)=5x – 6 -21 -16 ...

A: Introduction:- A function is an expression, rule, or law in mathematics that defines a relationship ...

Q: Given that f(x) = x² – 8x and g(x) = x – 9, calculate (a) ƒ o g( – 4)=| (b) g o f( – 4)=

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Q: Simplify the given product below. (x+ 1)(x- 12) O x2 - 11x - 12 O x2 - 12x - 12 O x² - 11x + 12 O x²...

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Q: A rancher has 600 feet of fencing to put around a rectangular field and then subdivide the field int...

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Q: A. Given vectors a1 = , a2 = , аз -3 determine the components of the vector 4 2а1 + За2 — 5аз. B. Le...

A: We have to find if V is linear combination of u1 and U2.

Q: -(2) Solve the IVP. Check thet well answeo you con ditions. the ODE as imitial ad i) %3D

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Q: 4. Here is the graph of a function. igion la Select the equation for the function represented by yf ...

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Q: 4y = 4 2x + y= 8 x – #1. Solve the system of linear equations Use Gauss-Joran elimination to find it...

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Q: An election ballot asks voters to select three city commissioners from a group of twelve candidates....

A: Answer is following-

Q: An object that is quickly heated and then left to cool in a cold room has a temperature given by T =...

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Q: uestion Given the matrix below, find ATB. -1 21 0 and B = [3 -2 A =| 5 6 - 4 2. 3 Choose your answer...

A: Here, the given matrices are: A=-125031 & B=3-21042

Q: SIMPLIFY x2 + 2x + xy + 2y x2 - 4

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Q: Solve the systems using gauss-jordan elimination. Show your solutions on a paper. 2x1 – x2 + ...

A: We have to solve the systems using Gauss-Jordan elimination.

Q: Find B - 2A:

A: Find B-2A