# Questions on Algebra: Linear Algebra (NOT Linear Equations) answered by real tutors!

Algebra ->  College -> Questions on Algebra: Linear Algebra (NOT Linear Equations) answered by real tutors!      Log On

 Question 343232: solve the following system using elimination: 2x-3y=7, 2y+x=-11 Click here to see answer by haileytucki(390)

 Question 343826: tell whether the function is linear, then evaluate the fuction for the given value of x. f(x)=2/(x-2): f(6) Click here to see answer by Fombitz(13828)

 Question 343954: -X/5+2y/3 is greater than or equal to 0 Click here to see answer by stanbon(60771)

 Question 344374: Classify each system and determine the number of solutions. {y + x = 2 y + 1 = -x Click here to see answer by Fombitz(13828)

 Question 344490: i need help solving x/6 + x/12 + x/7 +5 = x - 5 Click here to see answer by ewatrrr(11146)

 Question 344617: How do you know when an equation has no solution? Click here to see answer by Fombitz(13828)

 Question 344999: given the fomula: A=P(1+r/n)^n*t find the amount of money accumulated if you invested \$25,000 at 4.3% interest for 8 years compounded monthly Click here to see answer by mananth(13127)

 Question 345154: find the x and y intercepts of y=-6? Click here to see answer by user_dude2008(1861)

 Question 345788: Why does the equation 3x+7=-3x+2+6x have no solution? A. The variable cancels out and leaves a false statement. B. The variable cancels out and leaves a true statement. Click here to see answer by stanbon(60771)

 Question 345902: Hello, Give an example of 3 linearly dependent vectors in R^3 such that NONE of the 3 is a multiple of another? Thank You Click here to see answer by Fombitz(13828)

 Question 346256: How can i find a graph perpendicular to y=9 with points (3, 2) Click here to see answer by user_dude2008(1861)

 Question 346355: The Length of Hillcrest Garden is 6 feet more than its width. A walkway 3 feet wide surrounds the outside of the garden. The total area of the walkway is 288 square feet. Find the dimensions of the garden. Click here to see answer by checkley77(12569)

 Question 346413: I need help solving a system of 4 equations with 4 unknowns (finding where they all intersect). (w,x,y,z) w+2x+y-3z=10 -w+x+2y+z=-2 2w+3x+5y-2z+14 -2w+2x+3y+2z=-4 I know how to solve a 3 by 3, but the extra equation is throwing me off. Click here to see answer by fractalier(2101)

 Question 346544: how do i identify a,b, and c for this question y= 7x - 5 Click here to see answer by Fombitz(13828)

 Question 346626: Let f,g, element F(R,R) be the function defined by f(t)=e^rt and g(t)=e^st, where r cannot equal s. prove that f and g are linearly independent in F(R,R) Click here to see answer by Fombitz(13828)

 Question 347108: System of Equations by Substitution Solve each system by substitution. 7x+y=0 2x-y=9 Click here to see answer by Fombitz(13828)

 Question 347208: Here is the problem: "A line perpendicular to x+3y=5 passes through (1,1). What is the equation of the line in standard form?" Thanks! Click here to see answer by solver91311(18785)

 Question 347215: Which term is the linear term in the equation y = 2x^2 – 3x + 5 Click here to see answer by Fombitz(13828)

 Question 347214: For the system of linear equations: x + 2y = 6 x + ay = a + b a) Determine the values of a and b for which the system has: i) no solution ii) infinitely many solutions iii) exactly on solution b) In case ii) above, give the general solution of the system. Click here to see answer by Fombitz(13828)

 Question 347684: For what value of x would the expression below be undefined? 5x - 18 x - 7 Click here to see answer by Fombitz(13828)

 Question 347356: A bike shop sells bicycles and tricycles. There are 100 more bicycles in stock than there are tricycles. If there are a total of 300 tires being used for the bicycles and tricycles, how many tricycles are in stock? (Make sure to define your variable, write an equation, solve, and answer appropriately.) Click here to see answer by scott8148(6628)

 Question 348243: how do you graph this linear inequality? x less than equal to 0 Click here to see answer by stanbon(60771)

 Question 348410: The formula S= 2lw + 2lh + 2wh gives the surface area of a rectangular prism with length l, width w, and height h. Find the value of h Click here to see answer by stanbon(60771)

 Question 348607: Find the x- and y-intercepts of the equation x^2+xy+y=1 Click here to see answer by mananth(13127)
 Question 348607: Find the x- and y-intercepts of the equation x^2+xy+y=1 Click here to see answer by Fombitz(13828)

 Question 349119: A wire 50 ft long was cut into two pieces of different lengths. Use one variable to express the lengths of the two pieces. Find the length of each piece. Click here to see answer by Fombitz(13828)