117 Answered Questions for the topic Linear

Linear Math Solution


y=−3x+22 2x+2y=12

Solve the following system of linear equations by substitution and determine whether the system has one solution, no solution, or an infinite number of solutions. If the system has one solution,... more

What could be the eigenvalues of the transpose of a matrix?

A is an nxn matrix and f : Rn,n ---> Rn,nf(A) = f(AT)How can I find the eigenvalues of f? Thank you for the help,
Linear Calculus


Use linear approximation to estimate the amount of paint in cubic centimeter

Use linear approximation to estimate the amount of paint in cubic centimeters needed to apply a coat of paint 0.04 cm thick to a hemispherical dome with a diameter of 80 meters.


Quadratic or Linear?

I have two equations that I’m not sure if it’s quadratic or linear. 4x^2 + 2y = 4x^2 + x + yy = x(x - 3) - 2x(4 - x)Please help as much as possible


Two wheel gears are connected by a chain.

Two wheel gears are connected by a chain. The larger gear has a radius of 6 centimeters and the smaller gear has a radius of 4 centimeters. The smaller gear completes 28 revolutions in 15 seconds.... more


Multivariable Calculus Problem

Please help me with the problem below, I am really stuck:In 2-space, find the unit vectors orthogonal to y = e ^ 2x at x = 0.


The dimensions of a piece of paper used to wrap a rectangular package are x and 2x−1inches. What is the function with the dimensions that result in the maximum area for the wrapping paper?

Determine the type of function--exponential, linear, or quadratic-- that is most appropriate to model the situation described. Then, use the chosen function model to complete the problem.


Is f (x) = 4x + 3 linear, exponential or neither



73 less than twice chau’s Savings, use the variable c to represent chau’S savings

73 less than twice chau’s savings use the variable c to represent chau’s savings

determine the equation of a line that has a y-intercept that is large and an x-intercept that is small.

Describe a plan that the reader can follow to determine the equation of a line that has a y-intercept that is very large and an x-intercept that is very small. (If could be applied, show multiple... more

distance and midpoint?

Consider the two points (5,y0) and (-9, y1)   1.) Compute the distance between these two points in terms of y0 and y1.   2.) Compute the midpoint of these two points in terms of y0 and y1.
Linear Functions


Which function rule best describes this statement? The amount for the pair of jeans less than a $15 coupon

well I need help and I hope u can reply me immediately thanksss 

Please help me find the matrix X. Justify your answer please.

               2 1 0                   1 0 1Let A = [ 1 0 1 ] and B = [ 2 0 1 ]                0 3 0                  0 1 1 Find the matrix X such that (2X + A)-1 = B.

I want to solve this, i need help. Justify your answer please.

Consider the linear system: x - 2y + 3z = 4 2x - 3y + az = 5 3x - 4y + 5z = b   For which values of a and b does the linear system have a) no solution, b) a unique solution, c) infinitely... more


I'm confused on how to solve this worded problem

the question is: to earn extra money, martin works part-time in a butchers shop. In a particular week during the school holidays he worked twice as many hours on tuesday as he did on monday but... more


Getting the equation for a linear line

1 = a + 4.5 x 2 or 1 = a + 9 or a = -8 thus y = -8 + 4.5x so i know how to get the slope but not sure how a was found  


-x+4y=2 I need x and y

Solve for x and y  


Does each set of points have a linear relationship? (-6,-4),(-5,-2), (-4,0),(-3,2)

 How can I solve this without using a graph? 


Calculating the average speed

'A cyclist travelling at an average speed of u km/h takes t hours to travel from A to B. On reaching B, the cyclist rests for 0.1t hours before returning from B to A along the same route. If the... more


Creating and solving linear equations based on worded problems

'The ratio of the length to the width to the height of a rectangular prism is 2:1:3 and the sum of the lengths of all its edges is 360 cm. Calculate the height of of this rectangular... more


System of linear equations

Given this system of linear equations where {a} is parameter.ax + 18y = 13a² - a5x + (a - 1)y = 15For which value of a The system will have infinitely many solutions? Step by step guide, please.


Shortest Distance from a Point to a Line

Determine the Shortest distance from the point E  (-3,-2) to the line through points F (0,12) and G (6,0).

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